31/03/2020

Life Cycles Of A Penis

It’s no secret that a man’s sexual function declines with age. As his testosterone level falls, it takes more to arouse him, he takes longer to get an erection and to achieve orgasm and, following orgasm, to become aroused again. And that’s not all. Recent research confirms what men have long suspected and, in some cases, feared.

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The penis itself undergoes significant changes as a man moves from his sexual prime — around age 30 for most guys — into middle age and on to older age. Changes include: Appearance. There are two major changes. The head of the penis (glans) gradually loses its purplish color, the result of reduced blood flow. And there is a slow loss of pubic hair. “As testosterone wanes, the penis gradually reverts to its prepubertal, mostly hairless, state,” says Irwin Goldstein, MD, director of sexual medicine at Alvarado Hospital in San Diego and editor-in-chief of The Journal of Sexual Medicine.

Penis Size. Weight gain is common as men grow older. As fat accumulates on the lower abdomen, the apparent size of the penis changes. Ira Sharlip, MD, clinical professor of urology at the University of California, San Francisco, says, “A large prepubic fat pad makes the penile shaft look shorter.”

In addition to this apparent shrinkage (which is reversible) the penis tends to undergo an actual (and irreversible) reduction in size. The reduction — in both length and thickness — typically isn’t dramatic but may be noticeable. “If a man’s erect penis is 6 inches long when he is in his 30s, it might be 5 or 5-and-a-half inches when he reaches his 60s or 70s,” Goldstein says. What causes the penis to shrink? At least two mechanisms are involved.

One is the slow deposit of fatty substances (plaques) inside tiny arteries in the penis, which impairs blood flow to the organ. This process, known as atherosclerosis, is the same one that contributes to blockages inside the coronary arteries — a leading cause of heart attack. Goldstein explains that another mechanism involves the gradual buildup of relatively inelastic collagen (scar tissue) within the stretchy fibrous sheath that surrounds the erection chambers.

Erections occur when these chambers fill with blood. Blockages within the penile arteries — and increasingly inelastic chambers — mean smaller erections. As penis size changes, so does the size of the testicles. “Starting around age 40, the testicles definitely begin to shrink,” Goldstein says. The testicles of a 30-year-old man might measure 3 centimeters in diameter, he says; those of a 60-year-old, perhaps measures only 2 centimeters. Experts say these changes need not ruin your erotic life. As Goldstein puts it, “The most important ingredient for a satisfying sex life is the ability to satisfy your partner. And that doesn’t require peak sexual performance or a big penis.”

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