Laughter is the best medicine

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As the pace of life quickens and the pressure from our work increases,some people say that we are becoming more gloomy and unhappy with each passing day.They believe that,in fact,we are losing our ability to laugh.They also hold that if we laugh more often we will feel happier and be more healthy. Laughter can really bring us a lot of benefits.First,laughter has a similar effect to physical exercise.It speeds our heart rate,increase our blood pressure and quickens our breathing.When we laught,we produce a kind of chemical materials in our body that helps us to relieve pain. It is very good to laugh.