This all suggests that anticipation of a funny event can lower stress and stimulate the immune system, Lee Berk,an assistant professor of family medicine and researcher in complementary and alternative medicine who led the study said.

• 主持这一研究的家庭医学助理教授、辅助医学和替代医学领域研究者李·伯克说，这一切都表明对愉快事件的期待也能减轻压力，促进免疫系统。