A barometer of male healthMental health is one area where a man’s penile health could be an indicator of something going awry. Often enough, the Stanford professor continues, patients just don’t make the potential connection between their penile health and overall wellbeing. So, how should men keep on top of their penile health? “To have a healthy heart is to have a healthy penis,” says Carroll. “To have a healthy penis is to have a healthy heart.”