I do not like simple answers. But there are a lot of instances where a complex problem can have a very simple answer. Human beings seem so very complex but with certain situations presented to them they can have simple and almost predictable outcomes. I could agree with solar activity being tied to human behavior. We have long known the moon has an effect on animals and humans; so the sun could also have an effect.
btw I have had important people tell me when i "think" im seeing a ufo, I am actually mistaking it with Venus. (just an ice breaker)