How much water should I be drinking?
Dr Chris van Tullekan answers that perennial question: how much water should I really be drinking?
There's a popular myth that we should all drink 8 glasses of liquid a day - and some even say that this excludes all caffeinated and alcoholic drinks - but actually there鈥檚 very little evidence for this at all.
Our bodies have a very good system of keeping us well hydrated, and how much we need to drink is very much determined by the temperature, what we鈥檙e doing, and what we鈥檙e eating.
We get a lot of liquid from our food, and research shows that just because a drink has caffeine in it, or even a little alcohol, it doesn鈥檛 stop our bodies from using the water in it.
People often say that by the time you鈥檙e thirsty it's too late, you鈥檙e already dehydrated, but there's no evidence for that at all.
Drink when you're thirsty and don't worry about counting the glasses of water.
