The Water Myth
It is a common belief that you have to drink 6-8 glasses of water per day. Almost everyone has heard this recommendation at some point although if you were to ask someone why you need to drink this much water every day, they probably wouldn’t be able to tell you. There is usually some vague idea...
www.mcgill.ca
For reference, I live in hot and humid tropical climate and my estimated daily water loss far exceeds my daily water intake(only 2 to 3 glasses of water from all sources). Yet I'm still able to exercise like an athlete without any difficulties and my heart rate and blood pressure is that of athletes. I still sweat but I don't feel hot during workouts. It doesn't make sense at all.
I only drink when thirsty and that is how my hydration went down to only 2-3 glasses over time.
