As an added bonus, the impact was achieved without running any ofthe risk for serious side effects, including falling and premature death.

摘要

tract patients trom pain. The physical effects of laughter include increased breathing and oxygen use, short-term changes in hormones and certain neurotransmitters, and increased heart rate. Some hospitals and treatment centers have even set up special rooms with humorous games, books, movies and puzzles for the purpose of making people laugh. Many hospitals use volunteers who visit patients for the purpose of making them laugh.