Pills, Patches, and Shots

Part 10: Many Questions, Few Answers

It is important to remember that these studies may not give immediate or final answers, especially in the case of DHEA, melatonin, and hGH, since research on these supplements is fairly new. For example, some of the studies may simply give researchers more information about what kinds of questions they should ask in their next studies. Research is a step-by-step process, and larger studies may be needed to give more definite answers.

Until more is known about DHEA, melatonin, and hGH consumers should view them with a good deal of caution -- and doubt. Despite what advertisements or stories in the media may claim, hormone supplements have not been proven to prevent aging. Some harmful side effects already have been discovered, and further research my uncover others.

More is known about estrogen and testosterone, and people who are concerned about genuine deficiencies of these hormones should consult with their doctors about supplements. Meanwhile, people who choose to take any hormone supplement without a doctor's supervision should be aware that these supplements appear to have few clear-cut benefits for healthy individuals, and no proven influence on the aging process.

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