Here are some Scriptures that emphasize the physical effects of having a calm attitude. They have been penned down long before health authorities studied and discovered about them.
“A calm heart is the life of the fleshly organism, but jealousy is rottenness to the bones.”
– Proverbs 14:30
“He that is slow to anger is abundant in discernment, but one that is impatient is exalting foolishness.”
– Proverbs 14:29
“Let anger alone and leave rage;
Do not show yourself heated up only to do evil.”
– Psalm 37:8
“The calmness of the tongue is a tree of life, but distortion in it means a breaking down in the spirit.”
– Proverbs 15:4
So when in tight situations, let’s all calm down and live longer and healthier.
see link: wonderlandjourneys.blogspot.com/2010/09/on-being-calm.html