The first component you need to achieve an erection is a normal, intact male sexual organ. Secondly, a normal amount of circulating hormones is necessary. Third, a man must have an intact nerve supply and blood flow to the male sex organ. Finally, normal erections require a healthy psychological response to the arousing stimuli, coupled with a relaxed state of mind. Even though the most common causes of erectile dysfunction are psychological in nature, a dysfunction in one or more of above mentioned components will most likely cause erectile failure.
Premature ejaculation is one of the most common sexual problems.
The condition is most often described as being an inability to delay ejaculation to a point when it is mutually desirable for both partners. The definition of when ejaculation is premature is subjective. While some men have trouble controlling their orgasm upon entry, others consider 5-10 minutes of copulation too little time. How long a man is able to last is not the important factor in diagnosing premature ejaculation. The crucial issue is if a man is satisfied with the length of coitus.