How much water are you really supposed to drink everyday to be properly hydrated? is it 64oz across the board? or half of your body weight? also how much water is too much water? how common is water poisoning?

Water poisoning: Water poisoning occurs because the overload of water dangerously decreases your electrolytes, especially sodium. Each person will have a different point at which this occurs based on BMI, exercise, electrolyte intake and overall health. Symptoms of water intoxication typically start appearing after you consume more than 3 to 4 L of water in a few hours. Daily: Drink 3.7 L (male), 2.7 L (female)

See below: Drink enough water daily so that your urine is mostly colorless. Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Wish you good health!