Bernadette O’Brien, who is a Diabetes Educator of the Kimberley region of West Australia, gave us an insight into the amazing work of BOAB Health Services.
Laughter is a physical reaction in humans consisting usually of rhythmical, often audible contractions of the diaphragm and other parts of the respiratory system resulting most commonly in forms of "hee-hee" or "ha-ha".
It is a response to certain external or internal stimuli. - Wikipedia