boys and grandmothers, ages 8 to 80, at distances from 800m to the marathon and beyond. In the mid-1980s, a group called the World Masters Association began using a comparable American database to produce age- and gender-graded tables. These tables

consuming water," Almond said. "Sports drinks are mostly water, and they contain only small amounts of sodium."I asked if he was surprised that his results didn’t identify female gender as a risk factor for hyponatremia, as other studies have found. "I don

of water a day – is out. It has been replaced by formulas based primarily on your gender and bodyweight. Here are the formulas for moderately active men and women:Male Drinking RequirementBodyweight (lbs) x 10.36Female Drinking RequirementBodyweight (lbs) x