This has got to be a disgusting belief. I can't seem to forget those black holes. Why on earth do they think blood letting reduces high blood pressure? Superstition, I agree with You. That ain't scientific. Or if it is. Can someone prove me wrong with a link?
Disgusting traditions!!
Nice research work...
Well hopefully most aren't going to create those black circles of death hah, but yeah it's a shame some things can skip past the scientific process. It'll take time to change!