Human Growth Hormone (HGH) is produced by the pituatary gland. Abundant HGH contributes to a lean body, increased muscle mass and bone density, and a healthy sex life. As we age, HGH levels decrease, contributing to many of the typical signs of aging. CD #1- Stimulates both HGH and Beta Endorphins. This cd can be used during the day. CD#2- Goes to a deep delta level, to stimulate HGH while you sleep. This cd can also double as a sleep aid. #1717893