Morning erection is a normal physiological phenomenon, the exact mechanism of the occurrence of morning erection is not yet very clear, considered to have a relationship with age, drugs, diseases, lifestyle and other factors.
Morning erections occur when men enter puberty or adulthood, and gradually weaken with age, while erections can be abnormal in diseases such as hypertension, diabetes, sexual dysfunction, and prolonged sleep deprivation or mood swings, sadness and depression, and excessive smoking and drinking lead to fewer erections.
Erection is under neurovascular regulation, so that the corpus cavernosum is filled with blood, sleep parasympathetic nerve excitation, after a night’s sleep, the corpus cavernosum and the penis in the blood increased, will be unconscious erection, but also by a variety of factors, if the adult male can’t be normal morning erection to go to the hospital for examination, to clarify the cause of the disease.