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  2. Melatonin as a medication and supplement - Wikipedia

    en.wikipedia.org/wiki/Melatonin_as_a_medication...

    Melatonin can lower follicle-stimulating hormone levels. [52] Melatonin's effects on human reproduction remain unclear. [53] Some supplemental melatonin users report an increase in vivid dreaming. Extremely high doses of melatonin increased REM sleep time and dream activity in people both with and without narcolepsy. [54]

  3. Melatonin - Wikipedia

    en.wikipedia.org/wiki/Melatonin

    Melatonin, an indoleamine, is a natural compound produced by various organisms, including bacteria and eukaryotes. [1] Its discovery in 1958 by Aaron B. Lerner and colleagues stemmed from the isolation of a substance from the pineal gland of cows that could induce skin lightening in common frogs.

  4. Effects of high altitude on humans - Wikipedia

    en.wikipedia.org/wiki/Effects_of_high_altitude...

    Climbing Mount Rainier.. The effects of high altitude on humans are mostly the consequences of reduced partial pressure of oxygen in the atmosphere. The medical problems that are direct consequence of high altitude are caused by the low inspired partial pressure of oxygen, which is caused by the reduced atmospheric pressure, and the constant gas fraction of oxygen in atmospheric air over the ...

  5. Is melatonin or ashwagandha better for sleep? Experts weigh in

    www.aol.com/finance/melatonin-ashwagandha-better...

    Ashwagandha is an adaptogen, an herb that helps regulate the stress hormone cortisol. It comes from a shrub that grows in Africa and Asia, but you can often buy it as a capsule, powder, or tea ...

  6. Idiopathic hypersomnia - Wikipedia

    en.wikipedia.org/wiki/Idiopathic_hypersomnia

    Idiopathic hypersomnia (IH) is a neurological disorder which is characterized primarily by excessive sleep and excessive daytime sleepiness (EDS). [1] Idiopathic hypersomnia was first described by Bedrich Roth in 1976, and it can be divided into two forms: polysymptomatic and monosymptomatic. [2][3] The condition typically becomes evident in ...

  7. Vitamin D toxicity - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D_toxicity

    Vitamin D toxicity. Cholecalciferol (shown above) and ergocalciferol are the two major forms of vitamin D. Specialty. Endocrinology, toxicology. Vitamin D toxicity, or hypervitaminosis D, is the toxic state of an excess of vitamin D. The normal range for blood concentration in adults is 20 to 50 nanograms per milliliter (ng/mL).