I don’t think seeing the moon is the issue. Of course there are lighting differences outside during full moons. From what I understand, the gravitational force of the moon and sun cause tides in the world’s oceans. Those are pretty big forces - and they are real. This gravitational force is my suspect - lol
A little background. My inlaws both suffered from dementia in their later years. The nursing home staff often spoke about full moons being an issue. My son’s original psychiatrist had mentioned that some full moons cause incredible havoc among his patients. Folklorewise, the term “lunacy” goes way back in history. The word “lunatic” has been removed from many law books - as recently as 2012 in the States. “Person of unsound mind” has been a replacement choice. I would usually be one of the first scoffers at such suggestions BUT,
When my son had to come home to live with us, 4 years ago, after his insidious form of scz finally rendered him incapable of working and living totally on his own. I did notice after a series of episodes, there was a full moon. A friend began alerting me of full moons so I would be prepared - well, sometimes, there was absolutely no change at all that I could see in my son’s behaviors. So, I figured ,it was just nonsense. Disclaimer here - lol - not a real scientist -lol
Then we had the major episode in late 2016 which took bad to an all new level, which was followed by the amazingly even worse episode of 2017. That episode was so bad, we still haven’t fully recovered here. Recently I played the one bit of him violently screaming at our house from his porch- that we did manage to record last summer - my dogs jumped up and shook. That episode lasted 6 weeks - I have written before it was like we were under siege. He would begin the violent screaming at us - what makes it violent is the agony and the anger you can hear- and he would do it without warning at any time, 24 hours a day. He would stop and start, over and over again.
I decided to track full moons and my son’s behavior. While looking at moon information, I became aware that the moon is sometimes much closer to the earth. By coincidence (or not?) these last two closer full moons coincide with my son’s major episodes.
So now I had a possible explanation for why it isn’t every full moon.