By Mid-Century, Heat Waves Could Cover Far Bigger Areas

By Robert Preidt
HealthDay Reporter

THURSDAY, Oct. 10, 2019 (HealthDay News) — Climate change could trigger much bigger heat waves by mid-century, U.S. researchers report.

Previous research has predicted that the number and intensity of heat waves will increase, but this study is the first to examine changes in their potential physical size.

“As the physical size of these affected regions increases, more people will be exposed to heat stress,” said lead author Brad Lyon, an associate research professor at the University of Maine in Orono.

“Larger heat waves would also increase electrical loads and peak energy demand on the grid as more people and businesses turn on air conditioning in response,” he added.

The statistics are alarming.

With medium greenhouse gas emission levels, the average size of heat waves could grow 50% by mid-century, according to the study. With high emission levels, their average size could increase 80%, and more extreme heat waves could more than double in size, it predicted.

The study, published Oct. 7 in the journal Environmental Research Letters, was partly funded by the Climate Observations and Monitoring Program of the U.S. National Oceanic and Atmospheric Administration’s (NOAA) Climate Program Office.

Predictions about the growing size of heat waves could help utilities plan for the future, according to the researchers.

“Heat wave size is another dimension of extreme heat that people don’t necessarily think of,” Lyon said in a NOAA news release. “It’s a different vantage point from which to view them and assess their impacts.”

The study also found that the length and severity of heat waves could increase substantially, which came as no surprise to the researchers.

“An increase in attributes like magnitude and duration is consistent with expectations of a warming climate,” Lyon said. “What is new in our study is the way we calculated them, which allowed us to consider size as a new heat wave dimension.”

WebMD News from HealthDay


SOURCE: U.S. National Oceanic and Atmospheric Administration, news release, Oct. 7, 2019

Copyright © 2013-2018 HealthDay. All rights reserved.

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WebMD Health

How to Protect a Loved One With Dementia During a Heat Wave

MONDAY, Aug. 19, 2019 — Heat waves can pose a serious risk to people with Alzheimer’s disease, so their families should know how to keep them safe, advocates say.

Extreme heat is “dangerous for everyone, but especially for someone with Alzheimer’s disease, who may be unable to spot the warning signs of trouble or know how to get help,” said Charles Fuschillo Jr., president and CEO of the Alzheimer’s Foundation of America (AFA).

“Caregivers need to be proactive and prepared to protect their loved ones. Taking a few simple steps will go a long way,” he said in a foundation news release.

Alzheimer’s and other types of dementia can diminish a person’s ability to know when they are thirsty, so it’s crucial for caregivers to watch them and encourage them to drink often. Don’t let them have alcohol and caffeinated beverages, which may contribute to dehydration.

Seniors and people with chronic medical conditions are at high risk for hyperthermia, an abnormally high body temperature caused by an inability to regulate heat from the environment.

A life-threatening form of hyperthermia is heat stroke, a dangerous elevation in body temperature. Watch Alzheimer’s patients for warning signs such as excessive sweating, exhaustion, flushed or red skin, muscle cramps, fast pulse, headaches, dizziness and nausea.

If these symptoms develop, take immediate action. Get the person to a cooler location (one with air conditioning, if possible), remove clothing, apply cold compresses, and give fluids. If the person faints, develops excessive confusion or becomes unconscious, consider this a medical emergency and call 911.

Wandering is a common behavior in people with Alzheimer’s disease. It can be dangerous anytime but especially so in extreme heat.

Ensure the person’s basic needs (water, food, using the restroom, etc.) are being met, as wandering often stems from an unmet need.

Have a plan of action in case the person does wander off. Use a permanent marker or sew identification onto their clothes with your contact information. Have a recent photo and medical information, as well as details about familiar destinations they used to frequent, to assist emergency responders.

During heat waves, many communities open “cooling centers” for people who lack air conditioning at home. If your person with Alzheimer’s does not have air conditioning at home, find the locations of nearby cooling centers.

Blackouts and other power failures sometimes occur during heat waves, so make sure that cellphones, tablets and other electrical devices are fully charged. Have flashlights easily accessible, along with quick access to emergency contact numbers for local utility providers, as well as police and fire departments.

If you don’t live close by, arrange for someone who lives near the person with Alzheimer’s to check on them. Provide that person with emergency contacts and the location of important medical information.

More information

The U.S. National Institute on Aging has more about Alzheimer’s disease.

© 2019 HealthDay. All rights reserved.

Posted: August 2019 – Daily MedNews

How to Help Your Heart Weather Extreme Heat

SUNDAY, Aug. 11, 2019 — As extreme heat events become more common, you need to know how to protect your heart.

Hot temperatures and high humidity can lead to dehydration, which causes the heart to work harder and puts it at risk, according to the American Heart Association (AHA). Staying hydrated makes it easier for the heart to pump blood to your muscles.

“If you’re a heart patient, older than 50 or overweight, you might need to take special precautions in the heat,” said AHA President Dr. Robert Harrington.

“Certain heart medications like angiotensin receptor blockers [ARBs], angiotensin-converting enzyme [ACE] inhibitors, beta blockers, calcium channel blockers and diuretics, which deplete the body of sodium, can exaggerate the body’s response to heat and cause you to feel ill in extreme heat,” said Harrington, a cardiologist who heads the Department of Medicine at Stanford University in California.

If you have heat-related concerns about these medications, discuss them with your doctor. Never stop taking medications on your own.

Infants and the elderly are also at increased risk of heat-related problems, but everyone needs to take precautions in extreme heat.

“It is easy to get dehydrated as you may not be aware that you’re thirsty,” Harrington said in an AHA news release. “If you’re going to be outside, it’s important to drink water even if you don’t think you need it. Drink water before, during and after going outside in hot weather.”

Here are some other important hot weather precautions.

  • Avoid the outdoors between noon and 3 p.m., when the sun is usually at its strongest. When outside, wear lightweight, light-colored clothing made of breathable fabrics such as cotton, or a newer fabric that repels sweat. Wear a hat and sunglasses. Apply a water-resistant sunscreen with at least SPF 15 every two hours.
  • To stay hydrated, drink a few cups of water before, during and after exercise. Avoid caffeine and alcohol. Take regular breaks. Stop for a few minutes in shade or a cool place, hydrate and start again.

More information

The U.S. Centers for Disease Control and Prevention outlines how to prevent heat-related illness.

© 2019 HealthDay. All rights reserved.

Posted: August 2019 – Daily MedNews

‘Descendents 3’, LEGO Spidey & Pre-K Faves Heat Up Disney TV’s August

Things are starting to cool off on broadcast schedules as the big fall premiere season approaches, but kids can still catch plenty of fresh content across Disney TV channels in August.

The big debut of the month will be Descendants 3, the highly anticipated threequel of the live-action fantasy movie franchise, kicking things off at the top of the month on Disney Channel. On the animation front, Disney XD audiences will see the new special LEGO Marvel Spider-Man: Vexed by Venom. Season three of The Lion Guard gets roaring on Disney Junior, with episode premieres for other preschool favorites T.O.T.S. and Vampirina set for Disney Channel.

Descendants 3

Descendants 3

Friday, Aug. 2
9-9:30 A.M. EDT T.O.T.S. “Back To Cool/Baby Breakdown” (Disney Channel)

Pip and Freddy deliver a baby penguin to Pip’s hometown of Iceberg Alley. | When Pip and Freddy break the conveyor belt at T.O.T.S., they are determined to fix it on their own.

8-9:52 P.M. EDT Descendants 3 (Disney Channel)

This highly anticipated third installment in the global hit Disney Channel Original Movie franchise continues the contemporary saga of good versus evil as the teenage daughters and sons of Disney’s most infamous villains — Mal, Evie, Carlos and Jay (also known as the villain kids or VKs) — return to the Isle of the Lost to recruit a new batch of villainous offspring to join them at Auradon Prep. When a barrier breach jeopardizes the safety of Auradon during their departure off the Isle, Mal resolves to permanently close the barrier, fearing that nemeses Uma and Hades will wreak vengeance on the kingdom. Despite her decision, an unfathomable dark force threatens the people of Auradon and it’s up to Mal and the VKs to save everyone in their most epic battle yet.

Saturday, Aug. 3
9:00-9:55 A.M. EDT The Lion Guard “Battle for the Pride Lands” (Disney Junior)

After Kion and Ono are injured in an attempt to defeat Scar in the battle for the Pride Lands, the Lion Guard must embark on a journey to the Tree of Life to help them regain their strength. Returning guest stars include David Oyelowo (Selma) as Scar, Christian Slater (Mr. Robot) as Ushari, Blair Underwood (Marvel’s Agents of S.H.I.E.L.D.) as Makuu, Maia Mitchell (The Fosters) as Jasiri, Ana Gasteyer (The Goldbergs) as Reirei, John O’Hurley (Seinfeld) as Hadithi and Common (Selma) as Kiburi.

11:00-11:30 A.M. EDT Lego Marvel Spider-Man: Vexed by Venom (Disney XD)

Our friendly neighborhood Spider-Man must stop the evil Green Goblin and Venom from stealing key pieces of technology that could ultimately destroy New York City.

Lego Marvel Spider-Man: Vexed by Venom

Lego Marvel Spider-Man: Vexed by Venom

Friday, Aug. 9
9:00-9:30 A.M. EDT T.O.T.S. “Lost Lovey/Diggity Dog” (Disney Channel)

Pip and Freddy go on a wild chase to find Mia’s lost lovey. | Pip and Freddy’s delivery is in jeopardy when a puppy buries their FlyPad.

Friday, Aug. 16
9:00-9:30 A.M. EDT T.O.T.S. “Temple of the Tiger/The Gift-Mazing Birthday” (Disney Channel)

Freddy and Pip try their hardest to keep a baby tiger prince clean. | Freddy tries to find the perfect birthday present for one of the new babies.

9:30-10:00 A.M. EDT Vampirina “Bat Got Your Tongue/Haunted Theater” (Disney Channel) Vampirina loses her voice just before a Ghoul Girls performance in Transylvania. | Vampirina and her friends meet Sir Ghoulgood, a friendly, but dramatic ghost, on a field trip to a haunted theater. Alfred Molina (Raiders of the Lost Ark) guest stars as Sir Ghoulgood.

Friday, Aug. 23
9:00-9:30 A.M. EDT T.O.T.S. “The Bouncy Bouncy Baby/Like Cats and Dogs” (Disney Channel)

Pip gets locked inside a crate with a baby kangaroo. | Pip and Freddy must teach squabbling kitten and puppy siblings to share.

Animation Magazine

Man chases dog on London railway, adding to commuter heat misery

FILE PHOTO: Railway workers can be seen walking on the platform at Waterloo Station in London, Britain, December 13, 2018. REUTERS/Phil Noble

LONDON (Reuters) – London commuters were fuming after a man lost control of his dog at a railway station and chased it down one of the capital’s busiest stretches of track, adding to transport delays on Britain’s hottest July day on record.

Twitter users posted images on Thursday of the dog leaping over the tracks near Waterloo Station and another clip of a man running after it, leading to the suspension of train services.

“Well done to the person at Waterloo who on the hottest day of the year jumped onto the track in pursuit of their dog, requiring all 24 platforms to be shut down and all power and air con turned off on waiting trains packed with people,” tweeted Iain Martin, a columnist for the Times newspaper.

South Western Railway, which operates trains in and out of Waterloo, said lines were reopened about 30 minutes after the incident was reported.

Writing by William Schomberg; Editing by Kevin Liffey

Reuters: Oddly Enough

Heat Bakes the Nation, Here Are Some Safety Tips

By Robert Preidt
HealthDay Reporter

THURSDAY, July 18, 2019 (HealthDay News) — The heat is on.

Across two-thirds of the United States, over 115 million Americans live where some level of heat alert is already in effect, and 290 million will see temperatures soar past 90 degrees at some point in the next week, USA Today reported Wednesday.

As a dome of high pressure settles over much of the eastern and mid-Atlantic states, the heat indexes (the real-feel temperatures) in many places will top 100 and approach 110 degrees or higher, according to the U.S. National Weather Service.

What to do when the temperatures soar so high that heat-related illnesses start to take their toll? One expert offers some sage advice.

“Weekend athletes exercising in the heat need to remember to keep ahead of their fluids. It’s vital to stay ahead of your thirst during these heat extremes, not just to drink when you are thirsty,” said Dr. Robert Glatter, an emergency physician at Lenox Hill Hospital in New York City.

“Taking breaks is essential when intensely exercising in the heat for more than one hour. This includes rest, finding shade from the sun, and drinking water mixed with sugar and electrolytes. Salty pretzels, fruit and nuts are always a good option if you don’t have access to a drink with sugar and electrolytes,” Glatter noted.

If you exercise in the heat, try to do so early in the morning when humidity and heat from direct sunlight is low.

During heat waves, seniors are at greatly increased risk for heat stroke due to their reduced ability to sweat and therefore cool their bodies. They also may be taking medications to treat blood pressure, which can reduce their ability to sweat, Glatter said.

Heat stroke is a medical emergency that requires immediate treatment. Call 911 in such cases.

Medications such as acetaminophen (Tylenol) and ibuprofen (Motrin) do not reduce high core body temperatures, and could even be harmful. Patients need rapid cooling to reduce high core temperatures.

Along with blood pressure medications, antihistamines and medications to treat anxiety and depression may also increase the risk for heat stroke by reducing a person’s ability to sweat, Glatter noted.


“Hypertension, coronary artery disease and kidney disease — common in the senior population — all elevate the risk for developing heat stroke, due to reduced cardiac reserve and plasticity of blood vessels. These are major risk factors for heat stroke,” he explained.

During heat waves, check on seniors to see how they’re feeling. Make sure they have access to air conditioning, plenty of cool fluids, and create a heat response plan to help reduce the risk of heat stroke, Glatter advised.

Children are also at increased risk for heat stroke because they can’t regulate their body temperature as well as adults, and they may not drink enough in hot weather.

Everyone should drink plenty of cool fluids in the heat. Water is the best choice, but low-sugar sports drinks are recommended if you’re working in the heat or exercising for more than one hour. Don’t drink alcohol or sugary drinks, such as soda, in the heat because they can cause dehydration due to excessive water loss, Glatter said.

“Never leave a child or a senior in a parked car in the hot sun. In temperatures as low as 70 degrees Fahrenheit outside, the interior of the car can reach 90 to 100 degrees in as little as 20 to 30 minutes. When it’s 90 degrees outside, the interior can heat up to 110 to 120 degrees in 30 minutes and be lethal in that short time frame,” Glatter said.

WebMD News from HealthDay


SOURCES: Lenox Hill Hospital, news release, July 17, 2019;USA Today

Copyright © 2013-2018 HealthDay. All rights reserved.

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WebMD Health

Feeling the heat? Estonian takes his sauna on the road, literally

A smoke runs out of an old yellow Audi car converted into a small sauna in Tallinn, Estonia June 27, 2019. Picture taken June 27, 2019. REUTERS/Ints Kalnins

TALLINN (Reuters) – A lot of Europe has felt like a sauna this month, which makes Willem Maesalu’s weird car seem even weirder: the bright yellow Audi 100 Avant is a rolling sauna.

Maesalu, 29, got the idea to convert his car a couple of years ago, when he found out it would be too expensive to rent a sauna for his birthday party. He and some friends spent two weeks remodeling the vehicle into a working sauna: a SaunAudi, as he calls it.

It has all the accoutrements of a traditional Finnish steam bath: wooden panels, thermometers and a wood-fired stove beside the steering wheel. Actually, a traditional Finnish steam bath hasn’t got a stove beside the steering wheel, because it is inert. But space was limited, and the stove had to go somewhere.

To use the sauna, Maesalu, 29, puts a chimney in the bonnet, fires up the wood stove, and heats the sauna to 60 degrees Celsius (140 degrees Fahrenheit). If it got any hotter, the windows might crack. 

“The hardest part was figuring out where to put the heater and to find a way for the windows to not get too hot and break,” said Maesalu, a sprinkler systems maintenance technician and safety inspector.

The car can be driven, but Maesalu avoids taking it out on the road, since it lacks seats or seatbelts. Instead, he tows it around. He doesn’t take it out too often because insurance is expensive, for some reason.

Comfortably sitting four people, the SaunAudi has proved popular in Estonia, where others have previously converted vans or trucks. Maeslau has taken it to sauna festivals across Estonia and rents it out to steam lovers for 75 euros ($ 85) a day.

Reporting by Janis Laizans, writing by Louisa Naks, editing by Larry King

Reuters: Oddly Enough

Turn Up the Heat With Healthy Hot Chili Peppers

MONDAY, May 27, 2019 — Red or green, sweet or hot, peppers are a great source of vitamins A, C, E and many of the B vitamins, plus minerals like calcium, iron and potassium.

These and other nutrients are jammed into a low-calorie “package” that’s perfect for stuffing with other healthful foods. Chili peppers, such as jalapenos and serranos, also add zesty spice to dishes. They get their heat from a special compound called capsaicin that may also have health properties, including pain relief. (All peppers except bell peppers contain some capsaicin.)

When shopping for peppers, look for firm, unblemished skins with no soft spots. Store them in produce bags in the fridge for up to three days.

One of the tastiest Mexican chili peppers is the poblano. It looks similar to a green bell pepper, but has a slightly darker skin, longer shape and spicier, deeper flavor. Like bell peppers, poblanos can be heartily stuffed to make a complete meal. Here’s a meatless recipe that delivers on flavor as well as satisfaction.

Stuffed Poblanos

  • 4 poblano chili peppers
  • 4 cups baby spinach or 10-ounce package of frozen spinach, thawed
  • 1/4 cup raisins, red or golden
  • 2 tablespoons pine nuts or chopped walnuts
  • 4 tablespoons mild or medium salsa
  • 1 cup grated Colby or Jack cheese

Roast poblanos under the broiler on an ungreased baking tray for three to four minutes, turning often until their skins start to blacken and blister. Transfer the peppers to a glass bowl and cover with plastic wrap to loosen the skins. When cool, remove skins and place chili peppers in a baking dish.

Steam spinach if using fresh and chop coarsely. Combine with raisins and nuts, and use mixture to stuff chili peppers. Top with salsa and grated cheese.

Place under the broiler for one minute to melt the cheese. Serve immediately.

Yield: 4 servings

More information

The American Chemical Society has more on chili peppers and their heat rankings.

© 2019 HealthDay. All rights reserved.

Posted: May 2019 – Daily MedNews

More Back-to-Back Heat Waves Will Come With Climate Change

WEDNESDAY, May 15, 2019 — Here’s another health danger climate change will deliver in the coming years: New research warns that back-to-back heat waves that go on for days will become more common as the planet warms.

The elderly and the poor will be the least prepared to weather this threat, the investigators noted. But hospital ERs and emergency service providers will also be vulnerable to the public health havoc that such “compound heat waves” will likely inflict.

“By compound heat wave, we mean multiple heat waves — or possibly individual extremely hot days — occurring one after the other separated by short cooler breaks,” explained study author Jane Wilson Baldwin. She’s a postdoctoral research associate with the Princeton Environmental Institute in New Jersey.

An example, Baldwin said, would be five extremely hot days, followed by a respite of a couple of cooler days, and then three more extremely hot days.

Such repetitive scorchers are not confined to some distant future, the study found. They are already here, with heat waves and droughts currently pegged as the direct cause of roughly 20% of natural disaster deaths in the continental United States, more than any other single natural cause.

“However, these events will become significantly more common with global warming,” noted Baldwin.

“In the present climate, only about 10% of heat waves exhibit these compound structures. Without drastic changes to carbon emissions, we project that by 2050 that proportion should rise to about 30%, indicating a dramatic change in the character of heat waves, and possibly how society needs to prepare for them,” she said.

The study looked at a series of climate simulations generated by the U.S. National Oceanographic and Atmosphere Administration’s Geophysical Fluid Dynamics Laboratory, in conjunction with the Princeton Environmental Institute and its Atmosphere Administration’s Geophysical Fluid Dynamics Laboratory.

The simulations examined weather patterns dating as far back as 1861 and as far ahead as 2100. They used two possible carbon dioxide (CO2) emission scenarios: one with levels steady at 1990 numbers (which have long since been exceeded), and another in which 1990 levels doubled.

At 1990 levels heat waves were minimal, adding up to about 10 days per summer, with only 10% subject to compound heat waves.

But in the doubling scenario, the number of heat wave days was pegged as eventually rising sevenfold, with tropical regions most at risk. A quarter of those days were subject to compound heat wave cycles.

Overall, heat waves were projected to become more common and to last longer, with fewer cool days in between.

Baldwin and her colleagues reported their findings recently in the journal Earth’s Future.

For now, the team “stopped short of directly quantifying the human impacts of these events,” noted Baldwin.

But grave public health results are a distinct possibility. For example, an overtaxed electric grid may lead to increasingly frequent and lengthy blackouts and brownouts, rendering air conditioners useless, and leaving increasing numbers of people — particularly seniors — without access to lifesaving cool shelter. This may also be accompanied by a weakened food supply chain, due to the heat-prompted withering of agriculture and livestock resources, Baldwin said.

What’s more, over the next few decades the projected heat wave trends are likely unavoidable, she said.

“Global warming and heat wave changes through 2050 are essentially locked in,” Baldwin said. And that means adaptation is key, “such as increased AC and improved building ventilation; staying in shady, cool places and drinking more water; [and] hospital wards preparing for potentially more frequent heat stress victims.”

The problem is that “this adaptation is likely to be relatively easy for rich countries and people, and much harder for the poor and otherwise socioeconomically underprivileged, who already suffer the most from heat waves in the present,” Baldwin explained.

Kristie Ebi is director of the Center for Health and the Global Environment at the University of Washington in Seattle. She agreed that going forward, “individuals and communities need to be better prepared to manage temperatures outside the range of what we consider normal.

“The greenhouse gases in the atmosphere will increase the number and intensity of heat waves over the next couple of decades,” Ebi said.

“Based on the current number of illnesses and deaths during heat waves,” Ebi added, “it is reasonable to assume the numbers would increase with more compound heat waves, if additional actions to increase awareness and preparedness are not taken.”

More information

The U.S. Centers for Disease Control and Prevention has more about the perils of extreme heat.

© 2019 HealthDay. All rights reserved.

Posted: May 2019 – Daily MedNews

Michigan’s Marijuana Legalization Vote Campaigns Heat Up

Initial reports ahead of a key filing deadline less than two weeks ahead of Election Day for Michigan campaign committees formed to support or oppose the state’s marijuana legalization ballot measure show that only two of the groups are still actively receiving and spending money. The Coalition to Regulate Marijuana Like Alcohol, a pro-legalization group, […]

Evan Rachel Wood, Sterling K. Brown Might Heat Up ‘Frozen 2’

Sterlin K. Brown and Evan Rachel Wood

Sterlin K. Brown and Evan Rachel Wood

Emmy-nominated Westworld actress Evan Rachel Wood and Emmy/Golden Globe winning This Is Us lead Sterling K. Brown are reportedly in talks to voice roles in Frozen 2, according to Variety.

The sequel to the Oscar winning box-office smash will be directed by returning helmers Jennifer Lee and Chris Buck. Also confirmed to return are voice stars Idina Menzel, Kristen Bell and Josh Gad. Lee is also writing the screenplay, in addition to her new duties as Chief Creative Officer of Walt Disney Animation Studios. Frozen 2 is due out November 27, 2019.

Sterling K. Brown, recently seen in Disney/Marvel’s Black Panther, got to try out animation voice over with a guest appearance on Robot Chicken. He is also signed on for The Angry Birds Movie 2, out next year.

Evan Rachel Wood plays Dolores on Westworld, and is also known for her roles in Mildred Pierce and True Blood. She has also guests on Robot Chicken, and lent her voice to Strange Magic, Battle for Terra and the English dub of Asterix and the Vikings.

Sterlin K. Brown and Evan Rachel Wood

Sterlin K. Brown and Evan Rachel Wood

Animation Magazine

Beat the Heat on Your Summer Vacation

MONDAY, July 2, 2018 — Before you head out for a sunny summer getaway, get familiar with the signs of heat-related illnesses. Once at your destination, build in time for your body to adjust to the climate.

If you’re lounging by the water and taking only short walks, your risk of a heat illness is low. But if you’re not in great shape and aren’t used to the heat, beware of strenuous activities like hiking and biking.

Your body’s cooling system could fail if you’re in high temperatures and humidity for too long, sweating heavily, and not drinking the right fluids. Toss in a few fruity alcoholic beverages and you could be thrown for a loop.

Respect your fitness level. If you’re out of shape, go slow, even for fun activities like kayaking. Take frequent breaks. Don’t wait until you feel thirsty to drink bottled water. And don’t forget the sunscreen.

Heat-related illnesses include:

  • Heat cramps: painful muscle contractions, usually after exercising in the heat.
  • Heat syncope: lightheadedness or fainting caused by high temperatures.
  • Exercise-associated collapse: lightheadedness or fainting right after exercising.
  • Heat exhaustion: body temperature as high as 104 Fahrenheit with cold, clammy skin, headache, weakness, nausea and vomiting.
  • Heat stroke: the above symptoms plus a body temperature over 104 F; you may no longer be able to sweat to cool yourself.

Preventing heat-related illnesses:

  • Give yourself time to acclimate to the heat.
  • Avoid activities during the hottest part of the day — exercise in the morning or evening, and in the shade.
  • Wear light, loose clothes and a wide-brimmed hat.
  • Stay hydrated, but don’t overdo fluid intake.
  • If you’ve been exercising for many hours in the heat, eat a salty snack or lightly salt your next meal to replace salt losses.

Know the signs of heat-related illnesses:

  • Cramping.
  • Confusion or irritability.
  • Excessive sweating.
  • Fatigue.
  • Feeling dizzy, lightheaded, nauseous or weak.
  • Headache.
  • Increased heart rate and/or low blood pressure.
  • Vision trouble.
  • Vomiting.

Take immediate steps if you develop any of these symptoms. Get out of the heat, lower your body temperature with wet towels or sit in a tub filled with cold water, and rehydrate with water or a sports drink. And contact a physician if necessary.

More information

The U.S. Centers for Disease Control and Prevention’s Travelers’ Health Problems With Heat and Cold page has more on heat-related illnesses.

© 2018 HealthDay. All rights reserved.

Posted: July 2018 – Daily MedNews

Preseason Practice Heat Risky for Football Players

By Alan Mozes

HealthDay Reporter

FRIDAY, Aug. 26, 2016 (HealthDay News) — As college football players trade in their beach towels for helmets and padding, new research shows their risk of developing sports-related heat illness shoots up.

In particular, during the first 14 days of preseason play these athletes face a greater than usual risk for a specific type of heat illness called exertional heat illness (EHI).

EHI is a serious and potentially life-threatening series of health complications that sometimes unfold when strenuous activity meets hot weather, the study authors said.

Catastrophic consequences from heat illness are avoidable with proper prevention, recognition and treatment, explained study co-author Michael Ferrara. He’s dean of the College of Health and Human Services at the University of New Hampshire in Durham.

Ferrara says it’s important that athletes be educated about the “signs and symptoms of heat illness, nutrition, rest and the proper method of re-hydration during post-practice sessions.”

Intermittent rest periods are also critical, to allow athletes time to cool down and rehydrate, he added.

It’s also important to have medical professionals (such as athletic trainers) on hand to quickly identify and treat any heat-related trouble, he added.

Ferrara highlighted a number of different EHI concerns.

One is exertional heat cramps, affecting the calf, quadriceps and hamstrings, and/or lower back or abdomen. Treatment involves stretching, fluids and cooling down.

Heat exhaustion may prompt a slightly above-normal temperature, alongside headaches, nausea and fatigue. Typically this calls for fluids, cooling down and a cessation of activity. This is different than heat stroke, when body temperature soars to 106 Fahrenheit or higher, according to the U.S. Centers for Disease Control and Prevention.

Heat-related fainting is another issue, he said.

Ferrara also pointed out that athletes can overdo it with fluids when trying to prevent heat illness. This excessive consumption of fluids is called exertional hyponatremia. It’s a dangerous situation in which electrolyte levels drop too low.

EHI can also be deadly. Nearly 125 college football athletes between 1960 and 2009 have died due to EHI, the study authors noted.


The current investigation looked for heat illness among 366,000 cases of on-field play involving football players in the National Collegiate Athletic Association. The players were from 60 colleges and universities across five regions in the United States.

In all, more than 550 EHI cases were identified. The study authors said the risk for EHI was roughly 1.5 for every 1,000 NCAA football players. Three-quarters of the cases involved cramping, while a quarter involved a combination of heat exhaustion and/or heat-related fainting.

Researchers also looked at the impact of “wet bulb globe temperature” (WBGT). WBGT assesses temperature, humidity, wind speed, sun angle and cloud cover to tally not just heat exposure but the overall “heat stress” produced while playing in direct sunlight.

In the end, the study concluded that when WBGT climbs above 82 degrees, EHI risk goes up significantly. The researchers said that coaches and athletic trainers need to be particularly wary of elevated WBGT levels.

Another expert further pointed out that some players will have specific medical conditions that make them particularly vulnerable to EHI.

Sickle cell anemia, asthma and pre-existing heart conditions can increase EHI risk, noted David Csillan. He’s co-chair of a task force that recently issued guidelines on preseason heat acclimatization for secondary school athletics.

Antidepressants and ADHD medications can also boost the risk for dehydration, he added.

“[And] many athletes report to preseason camp de-conditioned and acclimatized to cooler, facility-controlled environments,” observed Csillan. He’s also head athletic trainer at Ewing High School in Ewing, New Jersey. “As a result, the immediate introduction of heat and exercise places apparent stress to their body,” he said.

Coaches and athletic trainers, he said, need to continuously monitor such issues. They also need to pay attention to the particular needs of even younger high school athletes whose developing bodies “don’t adjust to environmental changes as well as adults.”

The study was published recently in the Journal of Athletic Training.

WebMD News from HealthDay


SOURCE: Michael Ferrara, Ph.D., A.T.C., dean, College of Health and Human Services, University of New Hampshire, Durham; David Csillan, MS, A.T.C., co-chair, “Inter-association task force on preseason heat acclimatization guidelines for secondary school athletics,” National Athletic Trainers’ Association (co-sponsor), and head athletic trainer, Ewing High School, Ewing, New Jersey; August 2016 Journal of Athletic Training

Copyright © 2013-2016 HealthDay. All rights reserved.

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Heat Waves Are Health Threats

SATURDAY July 2, 2016, 2016 — Heat waves are more than uncomfortable, they can be deadly.

That’s especially true in large cities. And, seniors, children and people with chronic health problems are at higher risk for heat-related illness and death, according to Dr. Robert Glatter. He’s an emergency physician at Lenox Hill Hospital in New York City.

“Those who have high blood pressure, heart disease, diabetes, kidney disease, as well as those who suffer with mental illness, may be at risk for heat-related emergencies, including heat cramps, heat syncope (fainting), heat exhaustion, as well as heat stroke,” he said in a hospital news release.

“Various classes of medications including beta blockers, as well as diuretics, can impair sweating — ultimately disrupting the body’s ability to cool itself. Other medications including antihistamines, as well as antidepressants and sedatives, may also impair your ability to sweat, leading to heat-related illnesses,” Glatter said.

But young, healthy people also need to heed hot and humid weather, he added.

To beat the heat, drink water when you feel thirsty, but don’t drink more than necessary. If you’re physically active outdoors in the heat for more than an hour, it’s a good idea to consume sports drinks, Glatter said.

And watch for signs of heat-related illness, he added.

“A high pulse rate, headache, dizziness, nausea, as well as shallow breathing, may be the initial signs of dehydration that may precede heat-related illness,” Glatter said.

An air-conditioned location is the best place to be on hot and humid days. If you don’t have air conditioning at home, use a fan and a spray bottle with cool water to prevent your body from overheating, he suggested.

More information

The U.S. Centers for Disease Control and Prevention has more about extreme heat and health.

Posted: July 2016

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3,300 Heat Deaths a Year Projected for NYC by 2080

FRIDAY June 24, 2016, 2016 — Heat-related deaths in New York City could soar in coming decades because of climate change if preventive measures aren’t taken, a new study indicates.

The researchers predict over 3,300 heat-related deaths a year in New York City by the 2080s.

But the majority of deaths could be averted by reducing fossil-fuel emissions (from coal, natural gas and oil) and using heat warnings and public cooling centers, according to study author Elisaveta Petkova, of Columbia University, and colleagues.

“We know climate change is creating more days of extreme heat, putting more people at risk for death in the coming decades,” Petkova, a project director at Columbia’s Earth Institute in New York City, said in a university news release.

“Our study shows that many of these deaths can be averted by limiting greenhouse gas emissions and pursuing measures to help people adapt to high temperatures,” she added.

The research team’s predictions are based on more than a century of temperature, population and death data for New York City, along with climate projections for the 2020s, 2050s and 2080s.

With air conditioning already prevalent, other steps may be necessary to ward off the deadly effects of heat waves. Programs to install reflective roofs, plant trees and protect residents who are especially vulnerable to high temperatures could boost the city’s heat resilience, the scientists suggested.

A report by the New York City Panel on Climate Change predicts that, by the 2080s, average temperatures in the city may be similar to Norfolk, Va., today. The number of days with a maximum temperature at or above 90 or 100 degrees Fahrenheit is expected to more than triple by the 2080s. Petkova is a member of the panel.

The study was published online June 23 in the journal Environmental Health Perspectives.

More information

The World Health Organization has more on climate change and health.

Posted: June 2016

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