It’s almost a badge of honor to declare yourself sleep-deprived these days. It’s an indication of how busy we are taking care of things, sacrificing our time for our job, or hobby, or kids, for example. But ongoing sleep deprivation affects health in profound ways. We all know how great it feels to wake up after a restful night’s sleep, and how awful it feels to be sleep-deprived.

A good night’s sleep does more than make you feel good, it helps you stay healthy.

Negative effects of sleep deprivation include being cognitively off your game, yawning too much, having trouble remembering things, and being more accident prone. Over time, chronic lack of sleep weakens the immune system, can lead to depression, and even increases risk factors for weight gain, high blood pressure, type 2 diabetes, and heart disease.

And as you might guess (or know from experience), losing sleep affects your erections as well. Here are some frequently asked questions about the relationship between sleep quality, sleep quantity, and erectile health.