gelotologist

plural gelotologists

1. A person who studies humour and laughter

   However there are moral ramifications upon which a mere gelotologist, or student of laughter, would not be prepared to pass judgment.

   1951, Albert Rapp, The origins of wit and humor, Dutton

   2 more examples

   Fry, who calls himself a gelotologist (from the Greek root gelos, meaning laughter), says laughter defuses anger, lifts depression, increases alertness, enhances learning, promotes creativity and cooperation, fosters mental health […]

   1994, Paul M. Insel, Core concepts in health, Mayfield Pub. Co., page 31

   A Stanford University professor and well-known Gelotologist has written that, "Besides increasing heart rate and hormone production, laughter moves extra nutrients and oxygen into your body's tissues."

   2003, Alan Schlines, Stop Arthritis: How I Defeated It Naturally, Virtualbookworm Publishing, page 123