What if, instead of tallying up head-shots in Team Fortress 2, you could channel your gaming skills towards helping scientists find treatments to diseases like HIV/AIDS? Well, it turns out you can. In fact, it's already been done.
Heart and brain surgeries are called "hypothermia-dependent" procedures because doctors often have to lower their patients' temperatures during surgery. The thing is, human blood doesn't transport oxygen as well at cold temperatures. Surgeons rely on synthetic blood substitutes to help the patient's body cope.