Are you really, truly capable of laughing at yourself? If so, it's a good sign that you have an optimistic personality and a good sense of humor, a new study suggests.
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.