Preventing dehydration during exercise is one of the keys of maintaining exercise performance (particularly in hot/humid environments). People engaged in intense exercise or work in the heat need to frequently ingest water or sports drinks (e.g., 6-8 oz every 10 – 15 minutes). Fluid loss during exercise is related to relative humidity, ambient temperature, clothing and fitness level. Exercise performance can be significantly impaired when 2% or more of body weight is lost through sweat. MotorTabs stops this damage and actually helps your body.