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” - 2 Glen Kenny - 2 Kavouras - 1 aren’t - 1 Kenny - 1 Craig Crandall - 1 “ - 1 Dr - 1
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☆ How to Work Out Safely in the Heat
  + stars: | 2023-07-22 | by ( Melinda Wenner Moyer | ) www.nytimes.com   time to read: +1 min
If the temperature outside is greater than 90 degrees or if the sun is shining, your body will also be heated by the environment, Dr. Kavouras said. “As you’re adding this huge external heat source, the body’s got to deal with that,” said Glen Kenny, a physiologist who studies the body’s stress response at the University of Ottawa. The main way the body sheds heat is through the evaporation of sweat, which cools the surface of the skin, Dr. Kavouras explained. This happens more easily in dry heat than in humidity, but in dry heat, sweat can evaporate so quickly that you may not notice it. “You don’t even see it and you don’t even know that you’re getting so dehydrated,” Dr. Kavouras said.
Persons: Kavouras, ”, Glen Kenny, aren’t, Kenny Organizations: University of Ottawa
☆ Heat Affects Older People More. Here’s How to Stay Safe.
  + stars: | 2023-07-20 | by ( Dana G. Smith | More About Dana G. Smith | ) www.nytimes.com   time to read: +1 min
How heat affects an aging bodyThe human body has two main mechanisms to cool itself: sweating and increasing blood flow to the skin. In older adults, those processes are compromised — they sweat less and they have poor circulation compared with younger adults. A diseased heart isn’t able to pump as much blood, further reducing blood flow to the skin. And if the nerves become affected in people with severe diabetes, the body might not receive the message that it needs to start sweating. In hot conditions, that can cause them to become dehydrated faster, which is “hugely detrimental for temperature control,” Dr. Crandall said.
Persons: ”, Craig Crandall, Glen Kenny, “, Dr, Crandall Organizations: University of Texas Southwestern Medical Center, University of Ottawa
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