Water is very important in keeping your body healthy.
5 F6 S0 A% H8 K2 ?# G8 [" zSeventy percent of your body weight is water, so it is important to make sure that you supply your body with plenty of fluids.
3 r0 x" `( |# k) \- U: etvb now,tvbnow,bttvbWater serves many purposes in your body including keeping blood clean, keeping skin soft and stretchy, and cooling you off when you become overheated.3 C* s# U, H- _2 G" ~5 t& n& ^0 N
When you exercise, water is most important in cooling.
6 {; N9 g# o7 pWater is used in what we call the perspiration process.公仔箱論壇' K' E! {3 R- D2 E
The perspiration works like this: first the body uses water to produce sweat; then the sweat on the skin evaporates (or dries up), when the sweat dries, it cools off the body. www3.tvboxnow.com) S8 i0 E1 J, @* \
On humid days (when it feels sticky and wet outside), the perspiration process may not work well enough to keep your body cool, since the sweat we make doesn’t dry up as well.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。1 o4 D1 Y! I( Z$ i4 h3 p" H; Q
To help keep your body cool on humid days, drink cold water many times a day.
- E5 A" }$ S4 R. T. X公仔箱論壇So how much water should you drink?
/ N7 p1 {& v+ v3 Z I! c$ F1 c公仔箱論壇You should aim to drink 8 glasses of water each day.公仔箱論壇9 S1 @/ V+ S9 M! { }
' ^1 ?6 M+ P) l5 r         Eight glasses looks like a lot of water for one day, but don’t forget, milk and juice count too.公仔箱論壇8 r9 w# E' m9 }5 w n: Y
Sports drinks also count, but not drinks with caffeine.
1 ^7 A6 U- V1 z5 [& oDrinks with caffeine, like soda, force more water to leave your body, so there isn’t as much water to help cool your body. / j- Q2 O! {7 @2 N
 Here are some simple ways to drink water throughout the day:
6 j% ]% d: O. Z" m公仔箱論壇  1 glass with each meal TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。) @0 _3 I- |& \4 A
 1 glass each time you brush your teeth # ^7 b, n' r5 f6 \# X1 ?* w0 F
 1 glass after you exercise www3.tvboxnow.com: [% Q" b3 }" [2 _: y9 h
 1 glass after school 公仔箱論壇2 _1 ?- C, r E! @ _3 @
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Keeping yourself hydrated is especially important when exercising. Follow these tips to prevent dehydration. Before exercise: An athlete should drink about 1 to 2 glasses (10-14 oz) of cold water 1-2 hours before activity and a little more than 1 glass (10 oz) of cold water 10-15 minutes before activity.
6 t6 T g8 s( y4 h" Q- h; DDuring exercise:TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。% \" Z4 Q$ J- t3 ^ z
An athlete should drink about half a glass (3-4 oz) of cold water every 15 minutes.www3.tvboxnow.com, d( w& ?! d2 C# F: k3 n
TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。7 ~% Y' t/ E7 x
After exercise:
; c2 Y) Q) d% T8 p0 _0 e9 Y- y: `An athlete should drink 2 glasses (16 oz) of cold water for every pound of body weight loss. If no weight was lost an athlete still needs at least 2 glasses to stay hydrated.% k+ k4 A8 M$ I5 S, G
, p( |9 w; N9 ~公仔箱論壇All individuals should drink water BEFORE they are thirsty because the thirst response occurs after dehydration has already taken effect in the body. | 
發表於 2007-12-3 09:27 AM
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