Men who can get an erection at night but not during the day may have to do with factors such as the environment, emotions, and psychological stress during the day.
Penile erection in men is affected by a variety of factors, such as penile function, the surrounding environment, emotions, and stress. In the case of normal penile function, it is easier to have an erection at night, because the environment and hormone levels at night, it is easier for the penis to show a state of congestion, the psychology is also in a state of relaxation, and the external conditions for penile erection are sufficient.
During the daytime, because of the light, hormones and other influences, emotions will be more tense, psychological pressure will be greater, so in the penis erection obstacles are more, it is not easy to make the penis congested. In addition, the function of the penis is also related to age and other factors, in the older age, the erectile function of the penis will be affected.
When there is an unexplained weakening of the erectile function of the penis, you should consult a doctor for examination and early treatment.