laughter

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Related to snicker: snigger, snort
The activity of laughing; the manifestation of mirth or joy, or, less commonly, sarcasm or scorn
Alternative medicine See Laughter club, Laughter therapy, Laughter yoga
Neurology Spasmodic and largely involuntary expirations often accompanied by inarticulate vocalisations, generally evoked by mirth
Physiology Laughter increases blood flow to the brain and activates neural networks—e.g., nucleus accumbens (NAcc) and amygdala. Functional MRI data suggests that the increase in blood flow to NAcc evoked by extreme humour is similar to that triggered by monetary gain or use of some addictive drugs; a key symptom of depression is the lack of a sense of reward from previously rewarding activities—e.g., humour
Psychiatry Laughter is regarded as the most effective coping skill for anxiety-panic disorders and may temporarily alleviate the symptoms of anxiety and depression

laughter

(laf′tĕr)
A series of inarticulate sounds produced as an expression of emotion, usually happiness or mirth. The role of humor and laughter in promoting a positive attitude and health and in preventing the progress of some diseases has been documented esp. when it is combined with proven medical therapies.

compulsive laughter

Laughter without cause, occurring in certain psychoses, esp. schizophrenia.

pathological laughter

Uncontrolled laughter (occasionally accompanied by, or alternating with, uncontrolled crying), caused by pseudobulbar lesions of the brain. These lesions may result from lacunar strokes, multiple sclerosis, anoxic brain injury, and other forms of brain injury.
References in periodicals archive ?
Snickers popup reads, Thinking of taking this advice?
Customers are being urged to check best before dates from April to October 2016 for the Mars multi-packs and July 2016 for Snickers.
We cannot be sure that this plastic was only in that particular Snickers," a spokeswoman from Mars Netherlands said on Monday.
The recall, in effect since Monday, follows a January 8 complaint from a consumer in Germany, she said, who found red plastic in a Snickers bar and sent it back to the company.
INGREDIENTS For the Cheesecake: 300g digestives, 150g melted butter, 120g sugar, 2 Snickers bars, 3 eggs, 50g soured cream, 700g cream cheese, 1tsp vanilla extract, 50g dark chocolate (to decorate), 50g salted peanuts (to decorate).
It was quite easy - it was just like school, except with Snickers instead of Greek homework.
Snickers and Mars bars - two of the nation's favourite treats - are being reduced by more than 10 per cent.
The weight of a Mars is dropping from 58g to 51g while Snickers has been trimmed even more - from 58g to 48g.
For consumers seeking the shareability of unwrapped confections, in May Mars introduced Snickers Bites and Milky Way Bites.
Dog lovers Ann Carter, 70, and Ernie Rubin, 67, threw a bash for 100 of their pals - and their four-legged friends - to celebrate the "marriage" of their pets, Snickers and Scruffy, the Mirror reported.
Luckily, the Snickers bar he had in his pocket was a king-sized version.
MARS and Snickers bars are likely to shrink in size as part of a deal with the UK Government to cut calories.