 pesky cockle burrs that used to get on your pants and your socks, and every time you got near them, they'd stick to you. The people who hitchhiked all the way home and you had to peel them off, they've got some anti-aging potential. Strange as it seems, it is the health mystery of the week. Let's squeeze another phone call in before the end of the hour. Here is Sue calling in from Bullhead City.