Hormones are interesting compounds, and scientists still striving to understand them and their role in human health and behavior. Too little, not good. Too much can feed certain cancers. And there's not just one, oh no, there's a whole bunch of these chemicals running 'round our brains. And then there is the role of pre-natal hormones in behavior. Not simple at all.

Just in the last few days we have these articles:

Testosterone Deprivation Makes Men Forget. Don't forget to check out the related links!

Scientists in Touch with Feminine Side. What is your finger ratio?

I agree with R.L.: It's a crowd thing. Mob mentality. Can be fun in small doses if one is careful.