In winter, older adults are at higher risk of losing body heat and slipping into potentially fatal hypothermia, US health officials warn. Older people can lose body heat quickly and find it harder to recognize the signs, experts at the US National Institute on Aging and the National Institutes of Health (NIH) explained. Hypothermia is a dangerous drop in core body temperature. It can happen when it's cold inside or outside and the body is unable to produce enough heat.
Even short exposure to cold can result in hypothermia. Older folks are especially vulnerable because their response to cold can be diminished by chronic medical conditions and some medicines, including over-the-counter cold remedies, the officials noted. Warning signs of hypothermia include: slowed or slurred speech; sleepiness or confusion; shivering or stiffness in the arms and legs; poor control over body movement; slow reactions; weak pulse; or a core body temperature of 95 degrees Fahrenheit or lower.
A body temperature that low can cause health problems, such as heart rhythm disturbances, and kidney and liver damage, according to information in an NIH news release.
If you think someone has the signs of hypothermia, call 911 and try to move them to a warmer place.
If you work or play outside during the winter, you need to know how cold affects your body. Being active in the cold can put you at risk for problems such as hypothermia and frostbite.
Cold temperatures, wind, rain, and even sweat cool your skin and pull heat away from your body. You also lose heat when you breathe and sit or stand on the cold ground or other cold surfaces.
In cold weather, your body tries to keep a warm inner (core) temperature to protect your vital organs. It does this by slowing blood circulation in your face, arms, hands, legs, and feet. The skin and tissues in these areas becomes colder. This puts you at risk for frostbite.
If your core body temperature drops just a few degrees, hypothermia will set in. With even mild hypothermia, your brain and body DO NOT work as well. Severe hypothermia can lead to death.
The key with all of your layers is to take them off as you warm up and add them back as you cool down. If you wear too much while exercising, you will sweat a lot, which can make you colder.
You need both food and fluids to fuel your body and keep you warm. If you skimp on either, you increase your risk for cold weather injuries such as hypothermia and frostbite.
Eating foods with carbohydrates gives you quick energy. If you are only out for a short time, you may want to carry a snack bar to keep your energy going. If you are out all day skiing, hiking, or working, be sure to bring food with protein and fat as well to fuel you over many hours.
Drink plenty of fluids before and during activities in the cold. You may not feel as thirsty in cold weather, but you still lose fluids through your sweat and when you breathe.
HealthDay
|
Recently The Independent interviewed Pulitzer prize-winning The Washington Post journalist Stephanie McCrummen at the Hong Kong Baptist University where he came to join a workshop. She answered some questions… 
Editor : M. Shamsur Rahman
Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.
Editor : M. Shamsur Rahman
Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.
|