Pineal gland
the pineal gland
Pineal gland
Pineal gland
melatonin
Air
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The second way in which the sun influences earth's weather is through the water cycle. As the sun warms the Earth's surface, WATER EVAPORATES FROM THE OCEANS INTO THE AIR.
age and life cycle occupation economic situation lifestyle personality and self concept
Pineal gland or Pineal body which makes melatonin, a hormone important in the sleep-wake cycle. It also influences sexual development
the U.S Gov. tracks and influences business cycles to prevent wild swings and economic behaviors... they act in self interest.
Animal research claims the lunar cycle may affect hormonal changes in insects. The lunar cycle influences reproduction in fish. The moon phases supposedly effect reproduction and menstruation in humans as well.