Are You Drinking Enough Water? Do we really need 8 glasses
of water a day? Science finally has
the answers. Every organ in the body needs water to function optimally, and most Americans simply aren't
drinking enough. Dehydration can cause headaches, dizziness, fatigue and irritability. The general rule of thumb for daily water consumption? Drink half your body weight in ounces. So, a 120-pound person would need 60 ounces of water a day. Drink up!