The Old Dancer Phenomenon

One of my favorite oddities of the human condition is the phenomenon of elderly dancers who can barely walk as they approach the dance floor. When the music starts, they straighten up and glide across the floor, 30 years dropping off their bodies in an instant. The music stops and they hobble off the floor, the years returning as quickly as they left. Go to a senior dance to observe this fascinating occurrence. If you want to stay young, learn to dance!