Benefit of Smiling
01. Makes us Attractive.
02. Change our mood or mind.
03. Common icable.
04. Relieves Stress.
05. Boosts your immune system.
06. Lower your blood pressure.
07. Natural pain killers.
Source: http://forum.dis.edu.bd/index.php?topic=1323.0Md. Abdullah-Al-Mamun (Badshah)