Want to stay healthy this winter? Forget about cough drops and cold medicine. Go out and buy a six-pack of beer. A new study has shown beer contains a chemical can can ward off a common virus.  Of course, Sapporo, the Japanese beer brand, funded the study, so no telling if it is completely scientific. If you’re concerned, play it safe — and stock up on a 12-pack. H/T Instapundit