Life Extenders Do It Longer: Sex and Aging I

In spring a young squirrel’s fancy turns because the days are getting longer, and exposure to longer light periods sets off a chain reaction involving the brain and pituitary gland, resulting in release of hormones that affect sex hormone levels and in turn cause the sex glands to enlarge and produce their sex hormones. —Joseph […]

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The Decline of Your Brain’s Chemical Messengers IV

Pathway for synthesis and metabolism of serotonin. In similar studies in rats, life extension was produced by giving oxytocin alone. Low acetylcholine levels contribute to the forgetfulness and lack of ability to concentrate which often occurs in old age. The cholinergic nervous system also controls the sensory input; too little acetylcholine and you are easily […]

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