Long before modern brain imaging technologies illuminated the neurophysiological mechanisms that make laughter contagious, William James (1842-1910) observed, "We don't laugh because we're happy, ...

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A heartwarming video of a baby laughing to his heart’s content over his mom’s goofy action has captured the hearts of many internet users. On May 15, Haley Hubbard took to Instagram to share the video ...

Get ready to smile! This video features a child's incredibly funny and contagious laughter. Guaranteed to brighten your day! Texas officials face scrutiny over response to catastrophic and deadly ...