Smile does not prove we are happy but a smile is the beginning of a happiness.
Smile, even if your heart is dripping with blood." – Ali bin Abi Talib
A smile is the shortest distance between two people.
Studies say, laughing for 10 minutes to 15 minutes per day can burn 40 calories. If done consistently for a year, this habit can reduce body weight between 1.3 kilograms to 1.8 kilograms per year.