Links:
- Laughter Yoga with John Cleese (YouTube): www.youtube.com/watch?v=yXEfjVnYkqM
- Laughter Yoga on Discovery Channel (YouTube): http://www.youtube.com/watch?v=ahhN3Ryw4O4
- Laughter Is the Best Medicine: http://www.helpguide.org/life/humor_laughter_health.htm
- Positive Effects of Laughter, Health Guidance: http://www.healthguidance.org/entry/11633/1/Positive-Effects-of-Laughter.html
- Effects of Laughter on the Human Brain: http://www.livestrong.com/article/170399-effects-of-laughter-on-the-human-brain/