There are some things in life that we’re just happy that they happen, especially when we don’t put a ton of thought into them—unless they don’t. Like an erection. But just so this article makes a bit more sense, we want to share a quickie (no pun) rundown of what causes a man’s penis to get hard in the first place.
Inside the penis, there are two chambers called the corpora cavernosa. It’s filled with blood, tissue and all sorts of open pockets. There is one main artery in each of these chambers that has thousands of nerves that send signals to the brain and other parts of the body.
When a man is stimulated (it can be by sight, touch, scent, etc.), the brain sends chemical messages, the arteries start to relax and blood flows in. As a result, the penis expands and then comes the erection. When no more blood is coming through, that’s when the penis becomes soft again.
If you got nothing else from all of that, erections start in the brain. Keeping that in mind, while there are some physical reasons for why a man may not be able to stay hard, there are some mental and emotional ones that are just as legitimate.
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