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8 Things You Didn’t Know About Your Penis

1. Use it or lose it
To maintain a healthy tone, the smooth muscle of the penis must be periodically enriched with oxygen by the rush of blood that engorges the penis and makes it erect. If a guy is physically able to get erect but never has erections during the day, maybe he finds himself in very un-erotic circumstances for a long time, he need not worry. The brain has an automatic built-in penis maintenance function.

Impulses from the brain cause erections during the dreaming phase of sleep called the REM phase. It doesn’t matter if you’re having a hot sex dream or a zombie apocalypse nightmare, your penis gets hard during that period of the sleep cycle.

But some men are physically unable to get erections, such as those who’ve suffered trauma to the nerves involved or who have nerve or blood vessel damage caused by diabetes.
“If they don’t do anything to maintain normal erections, they will get shortening of the penis. Without regular erections, penile tissue can become less elastic and shrink, making the penis 1-2 centimeters shorter.

A device like a vacuum pump, which forces the penis to swell with blood, can help men with physical erection problems maintain a healthy penis.

2. Your penis may be a ‘Grower’ or a ‘Show-er’
Among men, there is no consistent relationship between the size of the flaccid penis and its full erect length.
In one study of 80 men, researchers found that increases from flaccid to erect lengths ranged widely, from less than a quarter-inch to 3.5 inches longer.

Whatever the clinical significance of these data may be, the locker-room significance is considerable. You can’t assume that a dude with a big, limp penis gets much bigger with an erection. And the guy whose penis looks tiny might get a surprisingly big erection.

An analysis of more than a thousand measurements taken by sex researcher shows that shorter flaccid penises tend to gain about twice as much length as longer flaccid penises.

A penis that doesn’t gain much length with an erection has become known as a “show-er”, and a penis that gains a lot is said to be a “grower.” These are not medical terms, and there aren’t scientifically established thresholds for what’s a show-er or a grower.

Most penises aren’t extreme show-ers or growers. About 12% of penises gained one-third or less of their total length with an erection, and about 7% doubled in length when erect.

3. The Pleasure Zone
Many men consider the underside of the glans (head) of the penis and the underside of the shaft to be most sensitive to sexual pleasure. Researchers asked 81 healthy men to rate the erotic sensitivity of different areas of their bodies, including not only the penis but also zones such as the scrotum, anus, nipples, and neck.

The underside of the glans and underside of the shaft had the highest sensitivity rating for a significant majority of men, followed by the upper side of the glans, left and right sides of the glans, sides of the penis, upper side of the shaft, and foreskin (for the minority of men who were uncircumcised).

4. Sensitivity declines with age
Studies show that the penis steadily loses sensitivity as men age though it’s hard to say exactly by how much. That’s because different researchers have used different ways to stimulate the penis and measure sensitivity. In general, the sensitivity of the penis is gauged by the least amount of stimulation a man is able to feel. That is called the “sensory threshold.”

Despite the differences between studies, the data show a clear trend when taken together. From age 25 on, sensitivity starts to decline. The sharpest decline in sensitivity is seen between age 65 and 75.

5. Vibrators work on the penis too
Vibrators aren’t only for women. They work on the penis, too. In fact, vibration is so effective on the penis that often men with spinal cord injuries can ejaculate with the aid of a special medical vibrator. For this kind of treatment, the vibrator is usually held against the underside of the head of the penis. The vibrators are tuned to stimulate parts of the nervous system involved in ejaculation. “They work at frequencies or amplitudes that are more specific to the [nerve] pathways.”

Most men don’t need a medical vibrator to trigger an orgasm. Although vibrators often help men with ejaculation problems, you don’t have to have any kind of medical condition to use one. You could do it just for fun.

6. There’s more to the penis than meets the eye
Most guys would be proud to know that their penis is twice as long as they think, that’s because half the length of the penis is inside your body. Just like you don’t see all of a big oak tree above ground, you don’t see the root of your penis tucked up inside your pelvis and attached to your pubic bone. As seen in an MRI picture, an erect penis is shaped like a boomerang.

7. Your Penis Is a Habitat
The skin of your penis is home to a diverse community of bacteria. Researchers used genetic tests to identify the bacteria found on men’s penises. Their study showed there were a total of 42 unique kinds of bacteria inhabiting the skin of the penis. “We see that the human body is essentially an ecosystem”.

But uncircumcised and circumcised penises don’t have the same variety and abundance of bacteria. The researchers first analyzed samples from the penises of 12 men who were planning to get circumcised. Samples were taken and analyzed again after the men were circumcised.

After circumcision, there were fewer kinds of bacteria on the men’s penises. Many of the kinds of bacteria found to be less common or absent after circumcision were anaerobic meaning that they don’t need oxygen to grow.

The inner fold of the foreskin is a mucous membrane, like the inside of a person’s eyelids. I liken it to clear-cutting a forest. “You’re going to get a lot more sunlight, and you’re going to drastically change the environment.”
The study was done in Uganda, and all of the men studied were Ugandan.

Their research could help explain why circumcision has been linked to a lower risk of getting HIV. One theory is the anaerobic bacteria may prompt the immune system to respond in a way that makes cells more vulnerable to HIV infection.

8. Most Men Aren’t Circumcised
Worldwide, approximately 30% of males aged 15 and older are circumcised, according to a report from the World Health Organization (WHO) and UNAIDS.

Rates vary greatly depending upon religion and nationality, the report states. Almost all Jewish and Muslim males in the world have circumcised penises, and together they account for almost 70% of all circumcised males globally.
Some research shows that there may be health benefits from circumcision. For instance, circumcised men may be less likely to pass sexually transmitted diseases to their female partners or to develop penile cancer.

Men’s Health Guide

Fitness helps to stay healthy for both body and brain. Daily exercise increases muscle quality, develops the body’s immune system, slowing down the aging process and protects against other diseases.

Diet and Fitness

1. Lean Red Meat

If you’re a steak-and-potatoes guy, you’re in luck. Red meat can be good for you. Lean cuts of beef and pork are packed with protein and have only a little fatter than chicken breast. Red meat is also a good source of leucine, an amino acid that helps build muscle.

2. Tart Cherrie

The pigment in cherries and cherry juice mimics the effects of some anti-inflammatory medicines.

3. Chocolate

Chocolate may improve blood flow if you eat the right kind. The flavanols in dark chocolate may curb levels of bad cholesterol, improve circulation, and keep blood pressure in check. Men with poor blood flow are more likely to have erection problems, so heart-wise foods may protect your sex life, too. But too much chocolate can lead to weight gain. Enjoy 1 ounce a day instead of other sweets.

4. Shellfish

Shellfish and other types of seafood are rich in zinc, which is critically important for the heart, muscles, and reproductive system. Zinc levels below normal are linked to poor sperm quality and male infertility. Not fond of seafood? Beef, turkey, chicken, nuts, and seeds offer a healthy dose of zinc, too.

5. Avocado

Sure, this creamy fruit is high in fat, but it’s the good kind. The monounsaturated fat in avocados packs a one-two punch against cholesterol. It can knock down total cholesterol and “bad” cholesterol (LDL), too. The trick is to use a “mono” fat instead of saturated or trans fats. And eat no more than 25%-35% of all your calories from fat. Olive oil and nuts also contain good fats.

6. Fatty Fish

Fatty fish like salmon, herring, sardines, and halibut are another excellent source of healthy fat. They have a special type known as omega-3 fatty acids. These protect against heart disease, the top killer of men in the U. S. Two servings of fatty fish a week can lower your chances of dying from heart disease.

7. Ginger

Slices of this spicy root are often served with sushi or grated into an Asian stir-fry. Health-wise, ginger may help calm inflammation in the body — which can come in handy when you push yourself too hard. Eating ginger regularly may help reduce the pain of exercise-related muscle injuries.

8. Milk and Yogurt

The whey in milk and yogurt is another source of leucine, a muscle-building amino acid. Bonci recommends Greek yogurt, with a thick, creamy taste that men may like better. It’s also packed with protein, potassium, and friendly bacteria that keep the gut healthy. “Plus, it requires no preparation whatsoever.”

9. Bananas

The banana is celebrated for its bounty of potassium and with good reason. Potassium is critical for muscle contractions and bone health. It also helps blood pressure. Getting enough potassium may be as important as eating less sodium when it comes to lowering blood pressure.

10. Pistachios

Nuts provide protein, fiber, and zinc while satisfying the urge for a crunchy, salty snack. Pistachios are a stand out higher in plant sterols that can improve cholesterol levels. Eat them from the shell, so you work harder for each one. It’s a fun way to snack and keeps you from gobbling up too many calories too quickly.

11. Brazil Nuts

A single ounce of Brazil nuts has seven times the daily value of selenium. This mineral boosts the immune system and helps the thyroid gland.

12. Soy Foods

The food that offers the best protection against prostate cancer may be soy. That’s the finding from a study of 40 nations. Tofu, miso soup, and soy milk are all delicious ways to eat more soy. In Asian countries, people eat up to 90 times more soy foods than Americans eat. And prostate cancer is far less common in those countries.

13. Mixed Vegetables

Vegetables are packed with phytochemicals, nutrients that boost cell health and protect against cancer. There are many different phytochemicals, and the best way to get a variety of them is to eat different colored veggies. “There should be color on your plate at every meal,” Bonci says.

14. Leafy Green Vegetables

Spinach, collard greens, and kale can help the eyes as well as the prostate. These leafy green vegetables have plenty of lutein and zeaxanthin. Both nutrients protect against cataracts and age-related macular degeneration, an eye disease that impairs vision.

15. Eggs

Eggs provide lutein, protein, and iron, but you have to eat the whole egg. One yolk, with 185 mg of cholesterol, fits into the daily limit for healthy people. You might also cut back on high-cholesterol sweets to make room for whole eggs in your diet. If you have high cholesterol, ask your doctor if you should limit how many eggs you eat per week.

16. High-Fiber Cereal

Fiber may not sound manly, but it can be a performance enhancer. Executive or athlete, you can’t focus on your goals if your gut is acting up. Fiber keeps you full longer and helps your digestive system run smoothly. This doesn’t mean you have to give up your favorite cereal – just try mixing in some shredded wheat. “Don’t deprive yourself,” Bonci advises, “but add something good.”

17. Berries

Berries can help you be on top of your game mentally as well as physically. They’re loaded with antioxidants that may help lower the risk of cancer. Animal studies suggest blueberries can also enhance memory and thinking. Similar research in people is in its infancy but looks promising. When fresh berries are expensive or tough to find, try buying them frozen and making a shake.

18. Focus on the Good Stuff

To change your diet, add good foods rather than denying yourself bad ones. As you get used to eating more fruits, vegetables, lean meats, and whole grains, these foods may come to replace some of the less healthy choices. Dietitian Bonci offers a sports metaphor, to sum up, the benefits: You’ll play better today and stay in the game longer.