The other day I heard a friend talking about how "the moon's gravity affects our internal organs." This sounds like bull, but is it? And if so, how would I correct their misinformation?
I think the reason some people might believe this claim is because we're taught in school that the moon's gravity causes the tides. I think the reasoning goes, "well if the moon's gravity can affect the tides, surely it can affect smaller things too"
That might explain werewolves. Since the full moon is heavier it attracts wolf enzymes that are usually stored in the pancreas to be released into the blood stream.
You're forgetting the sun's gravity. Moon phases are caused by the relative angles of sun/moon/earth. So are the various levels of tides. It must affect werewolves as well.