Lunar cycle's effect is clearly seen on water bodies (esp the tides).. it's a universal phenomenon. Human body is over 70% water.
Farmers all over the world have known the value of lunar calendar and how to utilize those cycles for sowing to harnessing for maximum yield.
In Astrology (mother of modern astronomy), planet Moon has been considered a very important planet to describe the mind. Strength of moon (depending upon the lunar cycle) in an individual's natal chart shows how emotionally stable/fickle a person is. Role of females in one's life (mother/sister/ & other female relationships) are also assessed to some degree by the placement & strength of one's natal moon.
The effect of lunar cycle on everything (especially Human psyche) has been noticed and talked about in Yogic and spiritual texts in detail. There have been numerous scientific studies which have also agreed to what ancients have noticed/said about Moon's effect. Hence the word 'lunatic'
To deal with the adverse effects of lunar cycles many things have been suggested in Yogic texts. Fasting on the 11th day (called Ekadashi in Sanskrit) of the lunar cycle has been advised strongly as one of the methods. This regulates the amount of water in the body, rests the digestive system and other systems which follow digestion. Fasting on 11th day of moon, New moon and full moon has been practiced for centuries in spiritual traditions.
There are several other methods prescribed in Yogic scriptures by which the lunar movements can be utilized to one's advantage.
