Answers
1. False. High heat and humidity are harder on those in poor physical condition,
but athletes can suffer from heat exhaustion or heat stroke too. When the
weather bureau says there is a heat wave, slow down or exercise in a swimming
pool
or air-conditioned room.
2. True. The most important step to maintaining your energy during a workout
is to drink plenty of fluid (water, juices and other nonalcoholic beverages).
Also, you'll feel better if you emphasize fruits and vegetables in the summer.
Eating proteins and fats increases the body's heat production.
3. False. You don't need more calories in the winter if you spend most of
your time indoors and dress warmly when you go out. However, activities such
as
cross-country skiing and chopping wood can burn up to 600 calories and hour.
4. False. Hot drinks may have a psychological benefit but the do not do anything
to boost your body temperature. Hot drinks can dilate your blood vessels
in the skin and make you feel warm, but actually lead to a small amount of
heat
loss.
5. True. It is easy to become dehydrated in the cold weather because of the
water you lose from sweating and breathing (you have to warm and moisten
the air
as you inhale). Dehydration hinders the body's ability to regulate temperature.
Thus, if you become dehydrated in the cold, you feel colder.
