A study published in The New England Journal of Medicine showed that male participants over 60 years old, who took hGH for six months gained on average 8.8% lean body mass and lost 14% fat mass
The most discussed effects are sexual in nature: a subset of users report reduced libido, erectile dysfunction, and ejaculatory changes in approximately two to four percent of users in clinical trials, though real-world reporting and patient advocacy groups suggest this number may undercount persistent cases [6]
This, in turn, enhances the metabolic rate and activates a gene called SIRT1, often referred to as the longevity gene due to its role in reducing the risk of conditions such as diabetes, obesity, metabolic syndrome, atherosclerosis, kidney disease, liver disease, neurodegeneration, and cancer
It also plays an important role in a person's genetic components like the DNA and RNA of the egg and the sperm