Laughter is commonly associated with happiness, joy, and overall well-being, often serving as a natural expression of positive emotion that strengthens social connections and reduces stress. However, ...

This short video captures a completely spontaneous moment of pure, uncontrollable laughter that instantly lightens the mood.

Two sets of published diagnostic criteria are available to help differentiate PBA from depression. The first set of diagnostic criteria was developed by Poeck in 1969. 3 These 4 criteria include: ...

In January 1962, three schoolgirls at a mission boarding school near Lake Victoria in what was then called Tanganyika began laughing uncontrollably, and what followed would become one of the strangest ...

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Researchers have analysed reports of medical procedures in which the brains of awake people were electrically stimulated and found that distinct brain regions may be responsible for spontaneous and ...