The following four substances have long been used worldwide for life extension purposes. Recent studies have shown that all four significantly raise growth hormone levels in people, and I some cases restore the release of GH in elderly people back to youthful values. At the low dosages in which they are used for Growth Hormone stimulation and anti-aging, no serious side effects are associated with their use. And while there are risks involved in chronic use even chronic use of low dose aspirin can be injurious to health. The benefits in terms of GH release appear to outweigh the risks.
L-dopa what it is: This is actually an amino acid that occurs naturally in the human body. It is available only by prescription for use in Parkinson disease. Effect on Gh: L-dopa in one of the most effective Gh-stimulators in both animals and humans. A 1976 National Institute on Aging study by Joseph Meites, one of the most distinguished researchers in hormone and aging, found that .5 gram of the drug per day increased the Gh output of men over sixty who did not have Parkinson’s to levels approaching that of young adult! And there were no adverse effects at this dosage. A 1982 study by Sonntag and his colleagues found that L-dopa restored the growth hormone pulses that had decreased in old rats to those of young rats. According to Pearson and Shaw, .25 to o.5 gram of L-dopa can cause Growth Hormone release as shown by fat loss and muscle gain.
L-dopa is a precursor of dopamine, one of the important neuro-transmitters in regulation of growth hormone. Drugs that raise the levels of dopamine in the brain are among the most powerful stimulants of Gh release. It is also a building block for the transmitters norepinephrine and epinephrine, which have all been shown to increase Human growth hormone secretion.
The anti-aging benefits of L-dopa attained cinematic fame in Awakenings as the drug that jolted patients out of their fifty-year trance caused by a form of sleeping sickness. It may also serve to waken-although not as dramatically older people from the lethargy of aging. A number of studies in animals reveal that l-dopa has remarkable antiaging and life extending effects.