Exercising the brain with yoga. Interesting ---easy to do --you might want to give it a try this weekend.
Dr. Eugenius Ang, a Yale neurobiologist who has performed extensive research on the subject, found that Superbrain Yoga energizes and activates the brain by synchronizing Alpha brain waves. It reduces psychological stress and improves psychological stability, it results in greater intelligence and creativity, and it promotes proper functioning of the brain.
https://www.youtube.com/watch?v=D9BRD9bv-dw