Thierry Hertoghe, M.D. published a study in which he investigated the signs of symptoms of individuals aged 27 to 82 before and after 2 months of growth hormone treatment (self reported questioners by the patients)

After 2 months treatment
(Percent of patients reporting improvement)

Physical Signs
• Less wrinkles on face (75.5%)
• Less sagging skin on face and neck (67%)
• Firmer muscles (60.7%)
• Less body fat (48%)
• Better skin (thicker) (34.5%)
• Thicker head hair (28.1%)

Emotional/mental
• Improved emotional state (71.4%)
• Increased energy (86.8%)
• Improved physical stamina (86.04%)
• Increased ability to stay up late (82.5%)
• Improved resistance to stress ((83.7%)
• Significantly decreased Anxiety (calmer) (73.5%)
• Improved assertiveness (73.1%)
• Improved sense of power (77.8%)
• Improved self-esteem (50%)
• Depression improved or eliminated (82.7%)
• Improved sociability (77.8%)
• Decreased tendency to give sharp verbal retorts (71.0%)

Source: Thierry Hertoghe, M.D.

“The effects of six months of human growth hormone on lean body mass and adipose tissue reversed the equivalent of changes incurred during 10-20 years of aging.” "The overall deterioration of the body that comes with growing old is not inevitable...We now realize that some aspects of it can be prevented or reversed."

- Dr. Daniel Rudman, MD - New England Journal of Medicine