• Fitness & Excercise

    Does Running Shirtless Keep You Cooler in Heat, Humidity?

    On the muggiest, swampiest days of summer, you’ve no doubt questioned if running shirtless is the best way to beat the heat. But before you start thinking about how to kit up or strip down, you should understand what happens to your body in the heat. “When you exercise, you use energy that’s stored in your body to perform the work,” explains Samuel N. Cheuvront, Ph.D., a research physiologist who studies fluid balance and endurance exercise. “But only about 20 percent of all the energy we’re generating when we exercise actually goes toward performing the physical work; the rest of it is turned into heat.” Your body has a limited capacity…

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  • Health Conditions

    Brits are starting to wear face masks—but it hasn’t come easily

    Our mission to help you navigate the new normal is fueled by subscribers. To enjoy unlimited access to our journalism, subscribe today. Ask a Brit what they fear about wearing a face mask in public, and feeling “silly”, “self conscious” and “uncomfortable” will feature highly. The highly-developed British sense of embarrassment—alongside months of mixed-messages from the U.K. government and scientists—have made Britons much less likely to wear face masks in public compared to other countries, including the U.S. But as the government faces pressure to make masks mandatory in more settings, it’s also facing the challenge of actually getting Britons to wear them in the first place. By the end of…

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