This isn't when you install the AC one day too late or keep the flannel sheets on one night too long. Dr. Oz explains why we sweat and how much is normal -- and when it's an indication that something is seriously wrong. 

Animation produced by Visible Productions Inc.

You've heard of red wine and white wine but have you ever heard of blue wine? This blue version of wine is given a taste test to see how it compares to the classics.