what are erections and how ealy do they start?

Question

the truth

Answer 1

An erection is when your penis gets hard & stiff. This is what happens to a guy before he has sex. They start depending on what stage of puberty the guy is going through. Every guy is different. Actually, even babies can get erections. Obviously a baby isn't ready to have sex because he hasn't gone through puberty, so he isn't producing sperm.
But, an erection is the first step in the game of sex for a guy.

Answer 2

1

Answer 3

An erection of the penis occurs when two tubular structures that run the length of the penis, the corpora cavernosa, become engorged with venous blood. This may result from any of various stimuli. The corpus spongiosum is a single tubular structure located just below the corpora cavernosa, which contains the urethra, through which urine and semen pass during urination and ejaculation, respectively. This may also become slightly engorged with blood, but less so than the corpora cavernosa. Penile erection usually results from sexual stimulation and/or arousal, but can also occur by such causes as a full urinary bladder or spontaneously, most commonly during erotic or wet dreams. An erection results in swelling and enlargement of the penis or the swelling of the female counterpart to the penis, clitoris. Erections enable sexual intercourse and other sexual activities (sexual functions), though it is not essential for all sexual activities.

Erection is caused by signals from the parasympathetic nervous system; it is countered by the sympathetic nervous system which is mainly responsible for the "fight-or-flight" response. This explains why under stressful conditions, an erection is often difficult or impossible to achieve, and sudden onset of stress can deprive one of erection. The sympathetic nervous system is also responsible for causing ejaculation, which explains why most males lose their erection after ejaculation.

Erection may occur spontaneously in the absence of any specific sexual stimulation, particularly in adolescent males. All men who are physically able to achieve an erection do so during sleep, typically several times in a night. This is called nocturnal penile tumescence, and typically happens during REM sleep. The average male has an erection for a total of 100 minutes a night, and it is not uncommon for the erection to be present when he wakes up. This is utilized by sexual health practitioners to ascertain whether cases of erectile dysfunction are psychological or physiological in nature. Patients presenting with impotence are fitted with an elastic device worn around the penis which detects changes in girth and relays the information to a computer for later analysis. Men who obtain spontaneous erections in their sleep but not during waking hours are therefore considered to suffer from some form of psychosomatic condition, i.e. sexual anxiety disorder, which prevents them performing sexually.

Answer 4

Natural Penis Enlargement Exercises : http://LongPenis.uzaev.com/?zHOj

Answer 5

They start as early as a few hours after birth.

Answer 6

it is caused when there is an increased blood flow to the penis, due to cold air, or exitement, touch, whatever. I have seen small boys get them when the wind hits when you change the diapers.

Answer 7

oh how cute!

when your penis fills up with blood and gets hard...happens when you are sexually aroused. happens randomly around peuberty...from about age 10-12, sometimes for no reason at all.

happpens when you;re a baby too

Answer 8

They usually start in the morning, and end about ten minutes later... you'll know one, when you see one...