משלי כ:כט פירוש: רש״י

The glory of young men is their strength Just as the glory of young men is their strength, so is the beauty of elders their hoary head.

Contusions and wounds come for outpouring in evil Our Sages expounded: Whoever “pours himself” out into sinful things, will ultimately come to wounds and contusions.

and plagues in the innermost parts This is dropsy.