MadSci Network: Zoology
Query:

Re: why do my cats go crazy on full moons

Date: Mon Jan 22 08:13:18 2001
Posted By: Janet Hoff, Staff, Unit for Laboratory Animal Medicine, University of Michigan
Area of science: Zoology
ID: 973562544.Zo
Message:

Hi Micheal,

This is a good question.  I found a good explanation at the following web 
site.  It pertains to people but, it goes for animals as well since animals 
have basically the same body system as we do. 
 http://www.excel.net/~jaguar/fullmoon.html

The full moon affects many people everywhere causing emotional instability 
and insecurity. Ask any hospital worker and they will tell you that more 
accidents and personal assaults happen during the time of the full moon. 
Why this happens is a question worth considering. Its been told me that the 
gravitational force of the moon is strong enough to cause the ocean to rise 
(causing high tide) and therefore it is possibly changing the gravitational 
effect on our glands and organs which can affect our moods. 
   During the night the full moon counteracts the gravitational pull on us 
from the Earth, and during the day its complete absence overhead would 
allow the Earth's gravitation to have an unobstructed affect on us. This 
gravitational difference between mid-day and midnight is the greatest 
during the days of the full moon (and new moon when the moon is overhead 
during midday and absent during the night). It is one explanation for 
peoples more erratic behaviour during this time (and also during the new 
moon for some people). 
   Other additional effects include the different wavelengths of light 
coming from the moon, and the full moons affect on our inner pathogens. The 
light from the moon, as all can see, is of a different combination of 
wavelengths and strength of light than what the sun gives us. It has been 
known for many years that different colors of light cause different 
emotional reactions in us; Red = passion, Blue = calmness, Green = clarity 
of thought, etc. It could be that the moons silvery color is at least 
partially responsible for some people's emotional instability. Also 
consider that all of us have inner pathogens (organisms that get their 
sustenance from inside of other organisms) including yeast, worms, 
protazoan parasites, virus, and bacteria. It could be that the day to night 
gravitational change causes a change in the activity of these pathogens 
such as possible increased activity which would increase their drain on our 
nutrient levels and increase the amount of metabolic byproducts they 
excrete into our blodstream (thereby making us more toxic). 
   Why the full moon affects some people more than others is also a good 
question. It's probably because either some have borderline glandular 
functions or because some have more pathogens.

Thanks for the question.

Janet Hoff


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