As little as a one to three per cent decrease in your hydration can negatively affect your memory, concentration and decision-making. Water allows the chemicals and electrical signals to pass freely between brain cells. Try to drink at least 500ml of water for every 15 kg of your body weight each day. For the average man this would mean approximately three litres of water a day, or two and a half litres if you are a woman. Exercising or drinking caffeinated drinks will have a dehydrating effect, so in this case, you’ll need to drink more water than this to make up for it.
Eating hydrating foods, such as cucumber, melon and lettuce can actually be even more beneficial than water. Our bodies can often retain more water from foods rather than from drinks so they can be more effective at keeping our brains properly hydrated.
Other Information and Advice
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