Unit17Laughter【文章导语】Laughtercanmakepeoplehappy
Itisalsosaidthatlaughingcanmakepeoplehealthy
Isittrue
ThereisanEnglishsaying:“Laughteristhebestmedicine
”Untilrecently,fewpeopletookthesayingseriously
Now,however,doctorshavebeguntolookintolaughterandtheeffectsithasonthehumanbody
Theyhavefoundthatlaughterreallycanimprovepeople’shealth
Testswerecarriedouttostudytheeffectsoflaughteronthebody
Whenpeoplewatchedfunnyfilms,doctorscheckedtheirheartrate,bloodpressure,breathingandmuscles
Itwasfoundthatlaughterhassimilareffectstophysicalexercises
Itincreasesbloodpressure,theheartbeatingandbreathing;italsoworksseveralgroupsofmusclesintheface,thestomach,andeventhefeet
Iflaughterexercisesthebody,itmustbebeneficial
Othertestshaveshownthatlaughterappearstobeabletoreducetheeffectofpainonthebody
Inoneexperimen