Drinking a glass of water first thing in the morning has become a widespread wellness ritual, with claims ranging from detoxification to weight loss and sharper focus. But how much of this holds up to scientific scrutiny? The evidence is more nuanced — and more cautious — than most trending advice suggests.
In brief
- —60% of the human body is made up of water
- —Morning timing matters less than staying hydrated all day
- —Japanese water therapy claims on cancer and diabetes lack scientific backing
Water makes up 60% of the body — and every organ depends on it
Water is not simply a thirst-quencher. Approximately 60% of the human body is composed of water, and every major organ relies on it to function. It transports nutrients and oxygen to cells, regulates body temperature, lubricates joints, and acts as a shock absorber for sensitive tissues.
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