Mãn d?c nam x?y ra khi nam gi?i b? thi?u h?t l??ng hormone testosterone. Do ch? ?? sinh ho?t không khoa h?c ho?c tu?i tác. Sau tu?i thirty ho?c forty, l??ng hormone c?a nam gi?i gi?m kho?ng 1% m?i n?m."Considering that There may be so much demand, doctors feel force to prescribe it not to lose patients." Some Medical professionals may well imagi