re: Why Penis Erection At Night? Well there are two activities in the body:
Sympathetic Activity: It depends
upon nerves and spread through out the body. It makes body ready for emergency
and makes alert senses. Like in fear, our heart rate increases, our pupils of
eye dilated, we start sweating, etc.
Para-sympathetic Activity: It also
works on nerves and it works opposite to sympathetic activity. It makes body
relaxed. Like decreases heart rate, normalizes pupils, make out body cool etc.
Erection is due to Para-sympathetic
activity, while ejaculation is due to sympathetic activity. Since Para-sympathetic
relaxes our body therefore, at night time once we get relaxed, erection
happens. Your question that why it wont happen in day. The answer is simple. Get
erotic thoughts and make your body relaxed. Experience then what nature does?
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