阅读短文，根据短文内容回答问题。 Kataria is the founder of the worldwide laughter movement. The celebration of World Laughter Day is a positive activity for world peace and is to build up a global sense of brotherhood and friendship through laughter. The first “World Laughter Day” gathering（集会）took place in Mumbai, India, on 11th January 1998. 12, 000 members from India and international Laughter Clubs attended it. Now there are about 5, 000 Laughter Clubs worldwide on all 5 continents.
“HAPPY-DEMIC” was the first World Laughter Day gathering outside India. It took place on 9th January 2000 in Copenhagen, Denmark. “World Laughter Day” is now organized on the first Sunday of May every year. Hundreds of people gather worldwide on that day to laugh together.
Today, the world has never faced so much unrest（动荡）before. People are at war within themselves. Laughter is a universal language, which has the ability to unite humanity without religion（宗教）. Laughter can build a common connection between various religions and create a new world order. So we believe that laughter and only laughter can unite the world, building up a global sense of brotherhood and friendship.
Studies also say that laughter helps your body do the following: lower blood pressure; reduce stress; work out the heart, especially for those who are unable to perform physical exercise. So in life, when you can laugh, you should laugh loudly and with your entire body—because it's good for you.
