Research
There has never been an adequately large randomized controlled trial to prove definitively that HGH provides significant anti-aging benefits and that there are no significant adverse drug reactions; there have been many small studies which are described below.
Some scientific articles have demonstrated that HGH supplementation does not significantly increase muscle strength or aerobic exercise capacity in healthy individuals. While it is possible that there are some advantages, such as an increase in lean body mass, it is also evident that benefits are being exaggerated by some for commercial gain and ineffective products are being sold to unsuspecting consumers.
Some recent small clinical studies have shown that low-dose GH treatment for elderly patients with GH deficiency changes the body composition by increasing muscle mass, decreasing fat mass, increasing bone density and muscle strength, improves cardiovascular parameters (i.e. decrease of LDL cholesterol), and affects the quality of life without significant side effects. It must be emphasized that these studies were small—only tens of patients - and the results were therefore stated tentatively; in the words of one of the cited sources: "Clearly more studies are needed before GH replacement for the elderly becomes established. Safety issues will require close scrutiny, but the data available so far are sufficiently positive to undertake large multicentre, placebo-controlled trials, particularly looking at endpoints associated with prevention of frailty and loss of independence."
Read more about this topic: HGH Controversies
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“The great question that has never been answered, and which I have not yet been able to answer, despite my thirty years of research into the feminine soul, is “What does a woman want?””
—Sigmund Freud (1856–1939)
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—Catherine Drinker Bowen (1897–1973)