cell phones and math skills

Today I learned that cell phones cause bone density decreases. At least it will have in your hip if you're a man who has carried your phone on your hip for at least a year.

Also, all those math skills I was working to resurrect last year just work now. Just thinking about it, it appears that there's some quantum mechanics floating around in my head, too, but if I someday get to be an engineer again, I don't think I'll need that.