Dr. Madan Kateira, also known as the creator of laughter yoga, recommends laughing 15 minutes a day. Laughter is a potent medicine, and he knew that it must be spread quickly and to many people. That is why he chose to offer it for free. His vision was laughter clubs. People would get together in groups and spend time laughing together. He created exercises which would help people to laugh. Jokes used in laughter yoga are simple and innocent. Like one joke is to take out your imaginary empty wallet, and laugh.
In 2005 researchers at the University of Maryland found a link between healthy functioning blood vessels and laughter. Laughing releases endorphin like compounds which activate receptors to release nitric oxide; this dilates the blood vessels. Also, laughter reduces stress hormones, boosting the number of antibody producing cells, leading to a stronger immune system.
Laughing feels good. Laughter could potentially treat many diseases, when combined with other treatments. Spiritually you might start your journey into yoga with laughter yoga and then find yourself interested in meditation, chanting, and pranayama.