Might not it be wonderful if you could look years younger just by going for a supplement? The makers of "anti-aging" hormone supplements need you to believe that this really is possible. But before you recognize their claims and open your current wallet, see what medical scientists say.
With the exception connected with severe dietary restriction, no treatments are already clearly demonstrated to decrease the particular rate that humans age or maybe extend lifespan. Genetic manipulation in the frequently studied worm, Caenorhabditis elegans, along with in mice have doubled along with tripled their lifespan, but such experimentation in human beings is not ethical and has not been tried.
Hormonal therapy along with a large number of other pseudoscientific treatments have been touted to improve longevity and preserve youth. Thus far, none have succeeded. Some human hormones, however, have improved quality of life for people and have been used to take care of hormone deficiencies such as hypothyroidism or maybe hypogonadism.
Hormones are chemicals made by various glands in the body such as the pituitary, thyroid, adrenals, ovaries along with testes. They stimulate, regulate, and control nearly every biological process including sexual reproduction, growth, metabolism, and immune operate.
With aging, the production connected with hormones changes. Some hormones degrees increase (for example parathyroid hormone), while others decrease. Certain diseases may cause hormonal deficiencies. When deficiencies occur, artificial supplements may be prescribed. The strength and production of hormones which can be prescribed and sold as prescription drugs are regulated by the FDA just like as other prescription medications. Hormone supplements which can be sold without a prescription (over-the-counter) are certainly not approved or regulated by the particular FDA. The FDA says hormone-like substances which can be sold as dietary supplements is probably not as thoroughly studied, and, thus, the potential consequences of their use are certainly not well understood. Supplements could interact with prescribed medications and cause many serious side effects.
Dehydroepiandrosterone (DHEA). DHEA is made in your body from cholesterol by the adrenal glands. Although it is not fully understood what DHEA does in your body, it is known that several of it is converted into estrogen and also testosterone. Production of this substance peaks within the mid-20s, and gradually declines with age practically in most people. What this drop means or how it affects aging, if at all, is unclear. Proponents of DHEA use claim that it can slow aging, boost immunity, increase muscle and navicular bone strength, and burn fat. There is absolutely no proof, however, that DHEA supplements do some of these things. In fact, DHEA could potentially cause liver damage and, by increasing numbers of estrogen and testosterone, it may raise the risk for certain cancers. It could also increase your risk for cardiovascular disease. The FDA actually banned over-the-counter sales of DHEA in 1985. Now sold being a dietary supplement, DHEA is unregulated from the FDA.
Human growth hormone (hGH). The hormone hGH is made by the pituitary gland and is important for normal development and maintenance of tissues and organs; especially in children. Claims that hGH can increase muscle strength, burn fat and raise energy levels are still being researched. Although some studies have supported these claims, more data are needed. Research has shown that hGH may worsen diabetes, high blood pressure and arthritis. In addition, hGH is available only by prescription and must be given by injection, which can be very costly. hGH is approved by the FDA to treat children with growth problems, but not as an anti-aging therapy.
Testosterone. In men, testosterone is primarily produced in the testes. It regulates sex drive (libido), helps regulate bone mass, fat distribution, muscle mass and strength, and the production of red blood cells and sperm. Women also produce small amounts of testosterone. Claims that taking this male sex hormone can boost energy, well-being and sex drive are unproven. In high doses, testosterone can raise cholesterol and cause prostate problems. Testosterone is approved by the FDA to relieve symptoms of hypogonadism, or underdevelopment of the reproductive organs, but not as an anti-aging therapy. In aging males, testosterone has been shown to increase sex drive, increase muscle mass and impart a feeling of well-being. The long term risks of testosterone use in this setting have not been fully determined, however.
Melatonin. This hormone is made in the brain by the pineal gland. The secretion of melatonin in the body is influenced by light and many common medications. The level of melatonin may naturally decline with age. Some makers of melatonin supplements claim that they are an anti-aging and sleep remedy. Although melatonin can help some people sleep, if it is not taken the right way, melatonin can actually disrupt the sleep/wake cycle. Some research has raised concerns that it may cause certain blood vessels to constrict and increase risks for cardiovascular problems in people with high blood pressure and other existing cardiovascular diseases. Sold as a dietary supplement, melatonin is unregulated.
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