Scientists are working to grow the rarest blood type in the world in a lab, an effort that could have huge ramifications for medicine. The blood type in question, Rh null, is found in just 50 people ...

View post: Forget the Walking Pad. Doctor Shares an Underrated Tool to Increase Daily Movement and Fix Chronic Back Pain for Desk Workers For decades, most of us thought blood types were simple: A, B, ...