The Rio Olympics are on, and there’s nothing better than watching your favorite athletes competing at the highest level in the world. All the competitors have trained to the fullest and are hoping to be in the best shape possible, and all of them will do what they can to stay that way.
You’ve seen athletes wearing colorful tape to support their muscles, wearing braces on weak joints, and using massage to speed their recovery between events.
This year at Rio, it seems as if we're seeing something new: a number of athletes who are covered with big purple circles on their backs, legs, and arms.
