Since water is indespensable for living organism, body water store must be maintained properly. It depends on balance between water intake and its disappearance from the body. Metablic water is one of the important souce of water, which arises during metabolism of lipids, carbohydrates and proteins. Among them contribution of lipids is the greatest. Desert animals depend much on metabolic water. Loss of water causes dehydration, and it sometimes leads to heat exhaustion. To prevent these inconveniences, isotonic drinks are effective than water itself. Water loss is heavier during sustaining exercise. Sports drink has two roles, one is for water supply and the other is for carbohydrate charge to body. The latter role contributes a great deal to continuance of an endurance performance. Tap water in Japan has long been believed to be safe and good to drink until eutrophication of enviromnental water become evident. In early 1990’s, people interested in alkaline electrolized water (AEW) hoping that it would be better for health. From human study, AEW was proven to be effective in preventing mild stage of digestive trouble. Antioxidative effect of long-term AEW ingestion was also evident. Contraly to cathodic water, anodic water was oxidative and has antimicrobial acitivity. This property has been used in dental field. Nowadays, it was used for food sterilization. There are many ways to utilize many types of drink for healty and active life.

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[in Japanese]

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[in Japanese]

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[in Japanese]

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[in Japanese]

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