Experience laughter yoga, breathing and play-based movement exercises practiced for health and wellness by people of all professions and backgrounds. Not in a good mood? No sense of humor? No problem. Laughter Yoga is fun, easy to do, and restores joy and psychological well-being. The numerous health benefits include increasing oxygen to the brain and body, resulting in the reduction of stress and a strengthened immune system. There are no difficult contortions or on-the-floor exercises, and no yoga mats or exercise clothing is needed. A concluding guided meditation and talk follows the exercises.   Lainie Diamond is a certified Laughter Yoga instructor trained in New York City by Vishwa Prakash. At the Houston Public Library, she created Houston, We Have Laughter! the first weekly, public Laughter Yoga meeting in Houston. Her diverse range of Houston clients includes Bering Omega AIDS Community Services and Camp Victory! Lainie is a professional mezzo-soprano classical music singer.