Extreme Heat: A Prevention Guide to Promote Your Personal Health and Safety Though the elderly (65+), infants and children are more susceptible to heat stress, even the best conditioned of athletes can succumb to the health risks of hot weather. In the last 25 years more people have died from extreme heat than from hurricanes, floods, tornadoes, lightning and earthquakes combined. As simple as it seems, understanding how and why the body cools itself, when faced with extreme temperatures, is...