Just add water – but not too much
Given that you’re a walking bag of water, it should be common sense to say you need to stop yourself from drying out. When your body is deprived of water, it steals water from other organs, including your brain, and that’s unwise.
Conversely, your body cannot cope with too much water. Your hypothalamus – the barometer in your brain – runs on a slight lag. So it can take a while for your body to realise it has enough water in the tank. If you’re very thirsty and recklessly drink five litres of water in a short space of time, the cells will become overloaded with fluid. This results in a dilution of critical sodium levels – a potentially fatal condition known as hyponatremia.
All this just highlights how fragile your body can be. Under- or overwater it and you end up like that poor houseplant on
