The average adult manages just seven smiles a day - and at least one is probably false, according to a study.
It found even the most cheerful of us smile only 11 times a day, while the grumpiest produce just one.
The poll of 2,000 adults found the 51 per cent of us who admit to a daily false smile reserve it for our bosses.
Despite our relative unwillingness to smile, we love receiving them. The study found nearly a quarter of us revel in a smile from a lover, and around a fifth in one from our children or another family member.
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i assume there is no definite or approximate answer to this question. people laugh everytime they want and people can stop laughing if they want. people gets into different situation everyday and even at they're own will they cannot count how many times they laugh a day. i conclude there is no definite count, approximate count, or even an average count a person can laugh a year.