חַיֵּ֣י בְ֭שָׂרִים לֵ֣ב מַרְפֵּ֑א וּרְקַ֖ב עֲצָמ֣וֹת קִנְאָֽה׃
Ein ruhiges Herz ist das Leben des Fleisches; Aber Neid ist die Fäulnis der Knochen.
Rashi on Proverbs
A healing heart is the life of the flesh A heart of flesh, which heals the evil and passes over his retaliations, is the life of the creatures of the Holy One, blessed be He, who are flesh and blood.
Rashi on Proverbs
but anger is the rot of the bones A man who is often angry is the rot of everyone’s bones.