Why Does Being in the Heat Make Us Feel Tired?

The reason for this lethargy is simple: Your body is working hard to keep you cool, and this extra labor makes you feel tired, said Dr. Michele Casey, the regional medical director at Duke Health in North Carolina. "Your body, especially in the sun, has to work hard to maintain a consistent, normal, internal temperature," Casey told Live Science. This allows warm blood to cool off, releasing heat as it travels near the skin, Casey said.

from Yahoo Beauty http://ift.tt/2w6Wg7H
via IFTTT