Learn 9 important reasons to drink water often and how proper hydration supports energy, health, and overall well-being.

Add Yahoo as a preferred source to see more of our stories on Google. Klaus Vedfelt / DigitalVision via Getty Images Water is the world's most important resource, and it keeps our bodies functioning ...

Recommended daily water intake varies by age, sex, activity level and body size. General public health guidelines recommend about 11 cups per day for women and about 15 cups per day for men. Water is ...