Humans have always sought a fountain of youth, some magical formula to keep them young, strong and healthy, even with the passing of time.
Some people today claim they've found it in the human growth hormone.
Daily injections of this hormone, they say, will keep them younger and stronger. Doctors at UT Southwestern Medical Center at Dallas say they don't think this is such a good idea. This hormone is essential for the growth and development of children, but the body naturally produces less as it ages. The hormone has been used successfully to treat children who aren't growing properly. This hormone is now produced synthetically, and adults are starting to use it, thinking it fights the effects of aging.