Michael Phelps has taken the Olympics by storm, and it's not just because he is winning medals.
AFP
People noticed dark circles on his shoulders and that certainly aroused the curiosity of everyone around.
No, they aren't injuries, nor are they love bites! In fact they are a form of treatment many athletes are known to use.
AFP
Phelps, who won the 19th Olympic gold medal of his career on Sunday and helped the U.S. men's team to victory in the 4x100 meters freestyle relay, is one of a number of Olympic athletes practicing "cupping," an ancient Chinese healing practice.
During the therapy cups are placed on the section of the body in need of repair to create suction. The method is said to draw out any toxins, mobilize blood flow, soothe sore muscles and even help cure insomnia.
So there you are, explained as simply as it can be. Not a big mystery then? Basically a molehill was converted into a mountain. Relax everyone, it's just part of their daily routine.
AFP
Now that we have got it out of the way, let the Games continue.