I know this can be you will found it as not relatable or something kind of that but there were lots of studies happened on this and according to some of the experiences, those people who smile at any good situation, they live long and some of the women's house smiles at the exact situation. They had happier marriages and were more successful. So with this I hope you will find it helpful and please do share your reason of smile and till then bye bye. Thank you. Bye