This article was reviewed by Felix Gussone, MD. "Stiffness" is often considered a sign of male arousal, but it’s not uncommon to experience it even when you’re not turned on. Nocturnal arousal refers ...

This is different from traditional insomnia, in which you have “a much more realistic estimate of how much you actually slept ...

Unlike morning breath and bedhead, you might not mind waking up with an arousal. But why do guys get morning arousals? And what do morning arousal say about your health? Despite what you might think, ...