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Expect More Record-Breaking Heat in U.S., Scientists Warn

Posted 1 day 14 hours ago by Drugs.com

WEDNESDAY, Dec. 7, 2016 – Americans will face many more record-breaking hot days later this century if greenhouse gases continue to be pumped into the atmosphere at current levels, a new U.S. study warns. Scientists using computer modeling predict about 15 daily record-high temperatures for every record-low by about 2065 if no action is taken. That ratio could jump further if climate change-causing greenhouse gas emissions rise, the study from the National Center for Atmospheric Research (NCAR) predicts. In comparison, the ratio of record-high temperatures to record-lows has averaged about two to one over the last decade, according to the study authors. "More and more frequently, climate change will affect Americans with record-setting heat," lead author Gerald Meehl said in a NCAR news release. He's a senior scientist at the research center. The 15-to-1 ratio of record highs to lows ... Read more

Related support groups: Dehydration, Heat Stress

Water: Can It Be Too Much of a Good Thing?

Posted 3 Nov 2016 by Drugs.com

THURSDAY, Nov. 3, 2016 – Dehydration is a familiar foe for endurance athletes, and one that will be on the minds of every participant in Sunday's New York City Marathon. But did you know that drinking too much water can be potentially fatal, particularly if not treated properly? And you don't have to be an elite athlete like a marathoner to fall victim to what doctors call water intoxication. Water intoxication occurs when a person has consumed so much water that the salt levels in the blood become diluted, said Dr. Aaron Baggish, co-medical director of the Boston Marathon. "When sodium [salt] concentrations are low in the blood, it actually allows water to leak out of the blood into the other tissues," a condition known as hyponatremia, added Baggish, who's also associate director of the Cardiovascular Performance Program at the Massachusetts General Hospital Heart Center. The brain ... Read more

Related support groups: Dehydration, Hyponatremia, Hyponatremia, euvolemic

Icy Slurry May Be Best Way to Hydrate in Extreme Heat: Study

Posted 3 Nov 2016 by Drugs.com

WEDNESDAY, Nov. 2, 2016 – An ice slurry/water mix is a good way to manage body heat while people work or exercise in hot conditions, a new study finds. In experiments with volunteers, researchers compared the effectiveness of the ice slurry/water mix with regular water in controlling body heat. The mix was more effective than water and only half as much was needed, according to the study. "While the common approach to managing health in hot environments centers around maintaining hydration, limited attention is devoted to managing heat production from hard work or play," said lead investigator Brent Ruby. He is director of the Montana Center for Work Physiology and Exercise Metabolism at the University of Montana in Missoula. As the temperature rises, so does the need for fluid to maintain blood and sweat volume to keep the body cool through "evaporative cooling (good old-fashioned ... Read more

Related support groups: Dehydration, Heat Stress

How to Help Keep Your Kids Safe This Fall

Posted 7 Oct 2016 by Drugs.com

FRIDAY, Oct. 7, 2016 – With the arrival of fall, the days get shorter and the weather changes, which can bring special risks for kids. Shorter days mean many youngsters may be walking or biking home from after-school activities at dusk or after dark. Experts from UC Davis Children's Hospital and the UC Davis Trauma Prevention Program say kids must be taught how to ensure they will be seen, even when visibility is low. They urge parents to remind kids to: Use sidewalks and stay out of the street. Teach them that it's important to cross only at corners and never between parked cars. Wear bright or light-colored clothing or jackets. They can also wear shoes that have light-reflecting material or keep a small flashlight on their bag, backpack or belt loop to make sure drivers can see them. Use lights at night. Install headlights and taillights on your children's bikes or scooters that can ... Read more

Related support groups: Head Injury, Dehydration, Prevention of Fractures

Fans May Not Be Cool Choice for the Elderly

Posted 6 Sep 2016 by Drugs.com

TUESDAY, Sept. 6, 2016 – When the temperature soars to 108 degrees Fahrenheit or higher, older adults may want to forgo an electric fan, a tiny study suggests. Research involving nine people over 60 years of age found that using an electric fan raised heart rates and core temperatures when the weather got extremely hot. "The last thing we want is for people to stop using fans because in more moderate temperatures there's no question that fans can be beneficial," said study author Craig Crandall. He's a professor of internal medicine at the University of Texas Southwestern Medical Center at Dallas. "We are only saying that in certain conditions, such as an extreme heat wave, fans may be detrimental," he explained. But why would sitting in front of a fan cause an older person to get hotter? Fan use increases sweat loss in young adults. When the sweat evaporates, that serves to cool the ... Read more

Related support groups: Dehydration, Heat Stress

New Textile Promises Cool Comfort Without Air Conditioning

Posted 1 Sep 2016 by Drugs.com

THURSDAY, Sept. 1, 2016 – Stanford University engineers may have paved the way for the coolest clothes ever. The researchers developed a plastic-based textile that could be woven into fabric for clothing to help people in hot climates stay cool without air conditioning. They say the new material cools the body better than synthetic or natural fabrics used to make clothes today. "If you can cool the person rather than the building where they work or live, that will save energy," researcher Yi Cui said in a Stanford news release. Cui is an associate professor of materials science and engineering and of photon science. Wearers would feel nearly 4 degrees Fahrenheit cooler in the new material than in cotton clothing, according to the report. The new material is based on the same clear, clingy plastic substance you probably use every day to wrap leftovers: polyethylene. Like ordinary ... Read more

Related support groups: Dehydration, Heat Stress

First Days of Preseason Practice Pose Big Heat Risks for College Football Players

Posted 26 Aug 2016 by Drugs.com

FRIDAY, Aug. 26, 2016 – 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, ... Read more

Related support groups: Dehydration, Heat Stress

Child Dies in Hot Car Almost Once a Week

Posted 17 Aug 2016 by Drugs.com

WEDNESDAY, Aug. 17, 2016 – Nearly every eight days, a child dies from heatstroke from being left in a car that got too hot, according to Safe Kids Worldwide. Sometimes parents forget little ones are in the car if the kids have fallen asleep. Other times, people think they just have to go into a store for a few minutes. But, young children's bodies heat up three to five times faster than an adults, Safe Kids Worldwide says. Heat stroke is the leading cause of non-crash, vehicle related deaths among children, the group noted. To protect young children from dying of heatstroke in a car, parents and other caregivers need to remember to "ACT." Avoid heat stroke by never leaving children alone in a car, not even for a minute. Always lock your car when you're not in it so children don't get in on their own. Create reminders that your child is in the car by putting something next to your ... Read more

Related support groups: Dehydration, Heat Stress

Heat Waves Hit Seniors Hardest

Posted 16 Aug 2016 by Drugs.com

MONDAY, Aug. 15, 2016 – As much of the Northeast struggles with a heat wave that isn't expected to ease until the middle of this week, here are some expert tips on how to spot heat stroke. First off, older people are at added risk for heat stroke and other heat-related illnesses, according to the U.S. National Institute on Aging. This is particularly true for those with chronic health issues, the agency cautions. Heat fatigue, heat-related dizziness, heat cramps, heat exhaustion and heat stroke are all forms of hyperthermia. The condition occurs when the body is overwhelmed by heat and is unable to control its temperature, the NIA explains. Those who lack access to air conditioning or transportation, who can't move around, wear too much clothing or visit crowded places may be more vulnerable, the agency notes. Other factors that increase hyperthermia risk include: Dehydration, Poor ... Read more

Related support groups: Dehydration, Heat Stress

Health Tip: Locking Your Child in a Hot Car

Posted 12 Aug 2016 by Drugs.com

-- As parents become busier and busier, accidentally leaving a child in a hot car isn't out of the question. To prevent this very avoidable tragedy, the American Academy of Pediatrics suggests: Before you lock up, look in the back seat to make sure there are no children left in the car. Don't talk on the phone while driving. When your routine changes, be particularly alert. Set up a system with your child's care provider to call you if the child is more than 10 minutes late. Place a cellphone, bag or wallet in the back seat, which will prompt you to look there before leaving your car. If someone else drives your child, confirm that the youngster arrived safely. Read more

Related support groups: Dehydration, Heat Stress

Sky-High Temperatures Inside 'Bounce Houses'

Posted 12 Aug 2016 by Drugs.com

FRIDAY, Aug. 12, 2016 – Inflatable bounce houses are a hit with kids at birthday parties and fairs. But, jumping around in these structures in hot weather can lead to serious heat-related illness, researchers say. Bounce houses can create microclimates similar to closed cars. During hot summer weather, temperatures inside these play structures may climb to levels that pose health risks related to overheating, a new study finds. "Many parents are unaware of the potential heat dangers of these bounce houses," said Andrew Grundstein, study co-author and a professor of geography at the University of Georgia. "I have young children and let them play in bounce houses, but until this project I did not really think about the heat hazards. I was more worried about sprains and fractures from an accident." Grundstein and his colleagues conducted their investigation one afternoon in July 2015 ... Read more

Related support groups: Dehydration, Heat Stress

Health Tip: Exercising in the Heat

Posted 9 Aug 2016 by Drugs.com

-- Exercise is important at any time of year, but the hot summer months require extra precautions to keep you from overheating. The American Heart Association recommends: Don't exercise outdoors during the hottest hours of the day, generally between noon and 3 p.m. Drink extra water before, during and after exercise. Bring a water bottle to use while you exercise. Make sure clothing fits loosely, is light in color, is lightweight and wicks away moisture. Protect against sunburn with sunscreen, a hat and sunglasses. Give your body time to adjust to higher temperatures, and don't push yourself as hard as usual when the weather first heats up. Take breaks when needed, and listen to your body. Consult your doctor about the safety of exercising in hot weather. Work out with an exercise buddy for safety. Read more

Related support groups: Dehydration, Heat Stress

'Heat Dome' Not Budging Until Week's End

Posted 26 Jul 2016 by Drugs.com

TUESDAY, July 26, 2016 – The massive "heat dome" that has blanketed the eastern United States with oppressive heat and humidity for days will not be budging before the end of the week, weather forecasters said Tuesday. "With no strong pushes of cool air from Canada on the horizon, people from the mid-Atlantic to the Deep South can expect virtually no relief from the high heat and humidity," said AccuWeather meteorologist Kyle Elliott. The Pacific Northwest will not be spared soaring temperatures either, as dangerous heat barrels northward from the Southwest. The core of that heat had covered the southwestern part of the country for much of July, but it will shift toward the states of Washington and Oregon this week, according to AccuWeather. Later this week, temperatures will be 10 to 15 degrees Fahrenheit above average in cities like Seattle and Portland, and 100 degrees Fahrenheit is ... Read more

Related support groups: Dehydration, Heat Stress

'Heat Dome' Contines to Scorch Much of U.S.

Posted 25 Jul 2016 by Drugs.com

MONDAY, July 25, 2016 – The massive "heat dome" that sent temperatures in the United States soaring over the weekend continued to suffocate the central and eastern parts of the country on Monday, as experts offered tips on how to stay cool in the sweltering weather. With a heat dome, a massive ridge of high pressure essentially traps hot air underneath it, and miserably hot weather is the inevitable result, according to The Weather Channel. Over the past two days, roughly 110 million Americans saw heat indexes rise above 100 degrees Fahrenheit, Fox News reported Sunday. Washington was the only state in the lower 48 that did not see temperatures in at least the 90s, and the network said that the oppressive dome will not release its grip on the country until mid-week or later. Meanwhile, experts say the risk of heat exhaustion, heat stroke, and even death, remains. "Although preventable, ... Read more

Related support groups: Sunburn, Dehydration, Sunscreen, Prevention of Sunburn, Heat Stress, Deeptan, Coppertone

'Heat Dome' Heats Up United States

Posted 22 Jul 2016 by Drugs.com

FRIDAY, July 22, 2016 – As a massive "heat dome" stretches across the United States this week, sending temperatures and humidity levels soaring, experts offer advice on how to keep cool as the mercury rises to possibly record levels. The Midwest bore the brunt of the dome's oppressive influence Thursday, but the Mid-Atlantic and Northeast will be under its scorching effect by the weekend. With a heat dome, a massive ridge of high pressure essentially traps hot air underneath it, and miserably hot weather is the inevitable result, according to The Weather Channel. The risk of heat exhaustion, heat stroke, and even death, is high when such blistering temperatures arrive, experts noted. Twelve states, from Louisiana to the Great Lakes region, had already issued heat alerts by Thursday, and possibly more than 21 states will be under the dome at its peak, according to NBC News. With the ... Read more

Related support groups: Sunburn, Dehydration, Sunscreen, Prevention of Sunburn, Heat Stress, Deeptan, Coppertone

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