Since Ancient Times, humans have realized that the Moon has a big influence on planet Earth. Modern science showed us that the Moon modifies our planet’s tides, weather and temperatures. Elizabeth Merriam wrote: “since the Moon’s gravitational force depends on distance, at any given time, the portion of the Earth closest to the Moon (i.e. directly underneath it) is most strongly influenced by gravity. This means that when the Moon is over an ocean, the water is pulled toward it, creating what is called the tidal bulge. As the Moon orbits the Earth, the tidal bulge acts like a wave sweeping around the Earth. This effect causes the tides.” The relative distances of the Sun, Earth and Moon can affect the size and the magnitude of our planet’s two daily tidal bulges; the shape of the shoreline, including the presence of bays and estuaries, can increase the size of tides.
In any given 24 hours-period there are two low tides and two high tides, separated by a span of about an hour; during the new moon and full moon, high tides further increase in size and the low tides further decrease in size. The first and last quarter moon moderate the size of high and low tides. The weather is influenced through the presence or absence of water currents that can alter the continental temperatures like the Gulf current and the El Niño phenomenon have steadily done. The gravitational pull of the Moon can affect the land and atmosphere in a much-lower levels. What many ancient cultures have done is to study the possible effect of the Moon on human beings.
Animal physiology is affected by the seasonal, lunar and circadian rhythms in varying ways; even though the seasonal and circadian influences were studied, the lunar one is less well known. The lunar cycle supposedly influences the menstruation, fertility and birth rates; researchers have proposed that the level of melatonin and endogenous steroids might be the hormonal mediators. During full moon days, the birds lose the variations of their melatonin and corticosterone levels. The structure of the pineal glands and the taste sensitivity of laboratory rats are affected by the lunar cycles. The gravitational pull of the moon may trigger the release of hypothalamic hormones. What seemed to have been a “traditional truth” for old cultures is just being unveiled by science.
The correlation of the lunar cycles and fertility/births has been contested by meta-analysis of data. The records of 11,961 live births and 8,142 natural births (not induced by drugs or C-sections) during 1974-1978 In the University of California at Los Angeles Medical Center did not show any significant relationship with the lunar cycles. The study of 564.039 births in North Carolina from 1997 to 2001 did not show a significant correlation either. A 2001 review of 70,000,000,000 birth records from the National Center for Health Statistics also failed to find a meaningful correlation.
Two studies have found evidence that a full moon can exacerbate the aggressiveness of patients with Mental Disorders, especially Schizophrenia; a methodical analysis of data confirmed it. People with Epilepsy have less seizures when the moon is less illuminated and there is a clear sky. The Sussex Police in the UK claimed that there was a rise in violent crime in their streets during the full moon period, which has been reiterated by their peers in Ohio, Kentucky and New Zealand. A statistically dubious study found an increase of fatalities in Dade County during the full moon.
What do you think? Please tell us.
Don’t leave me alone.