Laughter Yoga   is a unique technique invented by Dr Kataria, a doctor from India, by which you can learn to "Laugh for No Reason". You don't even need a sense of humor, no funny jokes or comedy programs -- just a willingness to laugh -- and in the present climate everyone needs to laugh more. Laughter Yoga is a combination of Laughter Exercises and Yogic Breathing, so that you increase the amount of oxygen in your body while being playful, resulting in you feeling healthier, energetic and alive. This actually changes the physical conditions of your body so that you start to feel happier. Laughter Yoga is generally done in groups although it can be practiced alone. When you make eye contact with someone and you're both willing to laugh, the laughter is increased. However, we do say that you can "Fake   it, fake it till you make it" because the body doesn't know the difference between fake and true laughter; as long as you're willing to laugh you'll experience the same health benefits. Laughter Yoga started in a park in Mumbai in 1995 with just 5 participants, and now there're over 6,000 laughter clubs in 60 different countries -- showing the willingness of the world to laugh together. In the UK, Julie was one of the first people to train as a Laughter Leader with Dr Kataria in June 2002. In 2006 she was awarded Laughter Ambassador for her selfless service to promote Laughter Yoga. "Yoga has been part of my life for 30 years but 7 years ago my life changed when I discovered Laughter Yoga. I believe laughter and yoga are both good for your health," says Julie. The purpose of the passage is to   _  .
persuade people to take up Laughter Yoga tell people how to practise Laughter Yoga describe the good effects of Laughter Yoga introduce Laughter Yoga as a new event