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Human Growth Hormone Has No Impact On Lifespan, Study Finds

January 27, 2010: 01:25 PM EST
Human growth hormone (HGH) supplements are widely advertised on the Internet as a life-extending miracle because they have been observed to reduce some physical signs of aging, including thinning skin and reduced muscle mass, among HGH-deficient individuals. But new research among a group of Brazilian dwarfs shows that their lifespan is the same as those whose bodies make normal amounts of the hormone. “Our results don’t seem to support the notion that lack of HGH slows or accelerates the aging process,” says a researcher. In fact, the study concludes, levels of HGH don’t affect lifespan either positively or negatively.
Manuel H. Aguiar-Oliveira, Francielle T. Oliveira, et al., "Longevity in Untreated Congenital Growth Hormone Deficiency Due to a Homozygous Mutation in the GHRH Receptor Gene", Journal of Clinical Endocrinology & Metabolism, January 27, 2010, © The Endocrine Society
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