Melatonin News and Research

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Melatonin, also known chemically as N-acetyl-5-methoxytryptamine, is a naturally occurring compound found in animals, plants, and microbes. In animals, circulating levels of the hormone melatonin vary in a daily cycle, thereby allowing the entrainment of the circadian rhythms of several biological functions.

Pineal gland which regulates the cycles of sleep and waking evolved to improve vision

The pineal gland - which regulates the cycles of sleep and waking - appears to have evolved as an indirect way to improve vision, by keeping toxic compounds away from the eye

13 Aug 2004

Natural hormone called melatonin may guide our sleep patterns

Our general sleep patterns – being sleepy at night and awake during the day – are guided to a great extent by our exposure to light and darkness.

10 Jul 2004

Seasons may be involved in onset of menopause

Research by Hungarian fertility experts published (Thursday 10 June, 2004) in Europe’s leading reproductive medicine journal Human Reproduction, has revealed that the onset of the menopause may not be dictated only by the fact that a woman’s lifetime supply of eggs are running low, but also by changes in the seasons.

14 Jun 2004

Genes that allow nerve cells to communicate may have come from bacteria eons ago

Some of the genes that allow nerve cells and some other types of cells to send elaborate chemical messages to each other appear to have been transferred to animals or their immediate ancestors from bacteria eons ago.

2 Jun 2004

Small, frequent doses of caffeine best strategy for staying awake

Caffeine is the world's most widely-used stimulant yet, scientists still do not know exactly how it staves off sleep. Researchers at Brigham and Women's Hospital, Harvard Medical School and other institutions have now discovered that caffeine works by thwarting one of two interacting physiological systems that govern the human sleep-wake cycle.

11 May 2004