What is IGF-1 and what is it used for?IGF-1 (Insulin-Like Growth Factor) is a hormone that is naturally produced by your body from HGH (Human Growth Hormone), which is the main hormone secreted by the pituitary gland. HGH is usually produced during sleep or during strenuous physical activity, and is almost immediately converted into IGF by the liver. Although insulin is involved in IGF-1 production, HGH is the primary precursor.IGF-1 is a powerful growth-promoting metabolite whose production peaks during adolescence to accelerate body growth and development. As we age, the body secretes less HGH, and therefore IGF-1. By the time a person reaches 60 years of age, their body may produce only 25% of the HGH levels produced during adolescence. Scientists believe that this reduction in HGH and IGF-1 production as we age is associated with many age-related declines in the human body, such as graying hair, wrinkled skin, loss of sexual desire and function, decreased energy, increased body fat, and more.
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