Causes of Dehydration

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Dehydration is caused by insufficient intake of water or by losing a lot of fluid and not taking in enough to replace it.

It commonly results from an illness with persistent diarrhoea and vomiting, as well as excessive sweating from a fever, heavy work in hot surroundings or heatstroke.

Dehydration can also occur as a result of drinking too much alcohol. The headache associated with a hangover indicates that your body is dehydrated. This is why it is important to drink plenty of water when you have been drinking alcohol.