The Bible states it...
"A merry heart doeth good like a medicine: but a broken spirit drieth the bones." ~ Proverbs 17:22
"For the joy of the Lord is your strength." ~ Nehemiah 8:10d
Science confirms it...
Here are some reasons I found at helpguide.org as to why laughter is good for you.
|The Benefits of Laughter|
Physical Health Benefits:
Mental Health Benefits: