HGH can increase a person's height and muscle mass.

Following a congressional hearing earlier this year on the illegal use of performance-enhancing drugs, including human growth hormone, legislators moved toward making changes in the classification of HGH.

They drafted Senate Bill S. 277, which would reclassify it as a Schedule III controlled substance. It’s designed to close loopholes that allow professional athletes to obtain and use growth hormone to enhance their performance. It would have put growth hormone in a class with anabolic steroids and hard-core drugs like LSD and amphetamines.