| − | '''Human growth hormone''' (HGH) is a [[steroid]] that has been used illegally by some athletes to increase their muscle mass and agility. As of February 2008, [[Congress]] is investigating several [[baseball]] players, including [[Roger Clemons]], to see if they ever had HGH in their bodies. | + | '''Human growth hormone''' (HGH) is a [[steroid]] that has been used illegally by some athletes to increase their muscle mass and agility. In of February 2008, [[Congress]] investigated several [[baseball]] players, including [[Roger Clemons]], to see if they ever had HGH in their bodies. |