Sex hormones in men

How might behaviors affect hormones? The birdsong example demonstrates how hormones can affect behavior, but as noted, the reciprocal relation also occurs; that is, behavior can affect hormone concentrations. For example, the sight of a territorial intruder may elevate blood testosterone concentrations in resident male birds and thereby stimulate singing or fighting behavior. Similarly, male mice or rhesus monkeys that lose a fight decrease circulating testosterone concentrations for several days or even weeks afterward. Comparable results have also been reported in humans. Testosterone concentrations are affected not only in humans involved in physical combat, but also in those involved in simulated battles. For example, testosterone concentrations were elevated in winners and reduced in losers of regional chess tournaments.

Are your hormones in tune? Mounting evidence suggests that exposure to light at night -- whether you're asleep or awake --  might play a crucial role in cancer, diabetes, and obesity. The World Health Organization classified "circadian disruption" as probably carcinogenic, and light at night is considered by some to be an endocrine disruptor that may affect melatonin, cortisol, ghrelin, leptin, and testosterone. "Most people think, and the drug companies want you to think, that waking up at night is bad for you," says Richard Stevens, ., a cancer epidemiologist at the University of Connecticut health center. But that's not the case, he says -- it's exposure to light at night that's the problem. "If you wake up at night, as most of us do, that is a period of quiet wakefulness -- stay in bed, in the dark, and enjoy it," Stevens suggests.

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Millions of women today experience some kind of health issue relating to their hormones, ranging from premenstrual moodiness or sugar cravings, to severe hot flashes and sleep problems during menopause. Infertility and miscarriages are becoming more and more common. And while more and more women are searching for solutions, frequently the only solution offered to them by their doctors is to put artificial hormones into their body to relieve their symptoms. Hence the millions of prescriptions for synthetic Hormone Replacement […]
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Sex hormones in men

sex hormones in men

Millions of women today experience some kind of health issue relating to their hormones, ranging from premenstrual moodiness or sugar cravings, to severe hot flashes and sleep problems during menopause. Infertility and miscarriages are becoming more and more common. And while more and more women are searching for solutions, frequently the only solution offered to them by their doctors is to put artificial hormones into their body to relieve their symptoms. Hence the millions of prescriptions for synthetic Hormone Replacement […]
[Continue Reading]

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