A Moment of Science
Have you ever felt better after laughing? Laughter can be one of the best medicines. Find out why on A Moment of Science.
Scientists are learning that emotions, such as laughter, are universal.
How does a good joke make us forget our negative emotions?
Frequency is measured by the rate at which the vocal cords vibrate. We hear frequency as pitch. The laughter in some men can be as high as a soprano’s high C, and in women, laughter can reach the pitch of an octave higher than that.
Laughter research has found that less than 20% of laughter is a sincere response to someone's humor. In fact, it's primarily a social signal.
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