Jeffrey Kluger

Scarily, football helmets, which do a fine job of protecting against scalp laceration and skull fracture, do little to prevent concussions and may even exacerbate them, since even as the brain is rattling around inside the skull, the head is rattling around inside the helmet.

When people talk about people who are optimistic about gold, they call them 'gold bugs.' A bug is an insect. I don't call equity bugs 'cockroaches.' Do you understand? There is already a negative connotation with the expression of 'gold bug.'