Laughter and music could lower blood pressure just as much as cutting salt
Researchers at Osaka University in Japan assigned 79 people between the ages of 40 and 74 to one of three groups. Thirty-two were assigned to a music group where they listened to music and sang with music therapists. Thirty participants participated in laughter yoga, which combines breathing exercises with laughter stimulated through playful eye contact, plus watched a traditional Japanese comedy show called Rakugo.