When they say you need to drink 8 cups of water a day, does that refer to 8 standard glasses or 8 measured cups?
I always thought the science behind that was a bit shoddy, that they never really had any proper evidence for it. But anyway surely a glass size varies dramatically! Sounds silly to me, I'd just make sure you're well hydrated
The common wisdom is 8 (8 ounce) glasses...
But yeah, there is no scientific proof backing that up, a lot of our water comes from food... But drinking that much isnt exactly going to hurt
ichibanarky is right its 8 glasses no one said 8 cups but even so, most people dont need 8 glasses of water usually they just need around 6 and then some people need more
It's not 8 'cups', it's 8 glasses.