Carnal Knowledge: Things About Sex You Probably Don’t Know

Carnal Knowledge: Ten Things You Probably Don’t Know About Sex

By Sean Kenniff, MD

Despite the sexual revolution of the 1960s and 1970s and recent scientific advancements, there is still a lot of mystery surrounding everyone’s favorite physical activity. And if you think you know everything about sex, think again. Take a look at these ten sex headlines you might have missed. 

SEX AND THE CITY

People living in New York City have twice the number of sex partners as the average American. NY’s Daily News took a look at the sex lives of the Sex and the City Characters to see how they compared to the real thing. In the 94 episodes of six seasons the four main characters managed to bed 94 men and one woman.  Samantha was the most prolific lover, shagging 41 men and 1 woman. Carrie hooked up with 18 men and so did Charlotte. Miranda bedded 17 men. When these fictitious sexual patterns were compared to similar groups of real NY City women, those numbers were right on target.

DIRTY WORDS

The word pornography is a combination of the Greek word for prostitute, or “porno”, and the word “graphia” which means writing. So literally pornography originated as writings about prostitutes.

BREAST IMPLANTS ARE LINKED TO SUICIDE

Several studies have documented an increased risk of suicide in women who have breast implants. A Swedish study published in 2007 found women with breast implants were nearly three times more likely to commit suicide compared to women without the implants. According to the study the increased suicide risk did not appear until 10-years after the breast augmentation surgery. But twenty years after the surgery the researchers found the rate of suicide in women with implants was six times the expected rate. Some studies have found women with breast implants also have triple the risk of dying from drugs or alcohol.

SIZE MATTERS

The largest medically verified human penis measured almost 14 inches. The shortest ever recorded was 0.39 inches long, or just about one centimeter. Today normal size is said to be between five and seven inches. Rorqual whales have the largest penises of any animal; 10-feet long, and 1-foot in diameter. But compared to body size the unassuming barnacle has the largest endowment, with a penis up to 42-times its own body length (below).

MINUTE MEN…AND WOMEN

A 2008 survey of U.S. and Canadian sex therapists say “satisfying sex” lasts anywhere from three-to-thirteen minutes. 7-to-13 minutes was declared “desirable”, whereas 1-2 minutes was deemed “too short”, and more than 14 minutes was deemed “too long”.

VIRGINITY GENES?

Genes may play an important role in determining the age at which a person first engages in sexual intercourse according to a 2009 study. Researchers from California State University in Fullerton studied 48 pairs of twins who were raised apart and found the age of virginity loss was roughly 33% due to genetic influences. Previous studies have found a gene, called DRD4, is associated with impulsiveness, increased risk-taking behavior and a lower age at first intercourse. June is often cited as the most common month for loss of virginity (all those proms and weddings).

RED WINE MAY BOOST A WOMAN’S LIBIDO

Doctors from the University of Florence in Italy say a glass or two of red wine may boost a woman’s level of sexual interest. They studied more than 800 normal women and found women who enjoyed drinking 1-2 glasses of red wine had higher levels of sexual desire compared to women who drank other forms of alcohol or those who abstained. It is possible compounds in red wine increase blood flow to key areas.

HANGING CHADS

In most men the left testicle hangs lower than the right testicle, and although the reason is not entirely clear it makes a lot of practical sense. The oval shape of the testes and their different heights may prevent them from banging into each other when men walk. Both testicles rise with physical exertion or sexual intercourse for the same reason. The cremaster muscle is responsible for this reflex. Plus being further apart may keep the testicles cooler which is important for sperm production.

300 ORGASMS A DAY!

Women suffering from a rare condition called Persistent Sexual Arousal Syndrome, or PSAS, can have 300 orgasms each day or more. The orgasms in women with PSAS are usually unrelated to sexual activity or sexual thoughts, and they often occur at inappropriate and embarrassing times. In fact the orgasms come so frequently they cease to be pleasurable. Brain abnormalities have been found in some cases, but the cause of most cases remains a mystery.

FERTILE STRIPPERS MAKE MORE MONEY

New Mexican psychologist Geoffrey Miller studied female strippers and found they earn more tips in the week before their period than any other time during the menstrual cycle. This is the time of peak fertility, and Miller theorizes pheromones are signaling the men and causing them to tip larger amounts. In fact during peak fertility exotic dancers made twice as much money as they did when they were menstruating. The same study also found women on ‘the pill’ did not experience the monetary increase during this most fertile time.  

The “I Do” Blues: Postnuptial Depression

THE “I DO” BLUES: Postnuptial Depression

By Sean Kenniff, MD

  A wedding is usually one of the most joyous days in a young couple’s life; a time to celebrate love and hope for a lifetime of happiness. But for some newlyweds the big day is soon followed by a big letdown. 

  “It should be described as the day the prince falls off his horse, and we change from girls into women,” one blogger writes. 

  “What begins the day after marriage? Misery,” replies another. 

  In many cases once the honeymoon is over, humdrum reality sets in, and that can leave unprepared couples coping with postnuptial depression-also called the ‘I Do Blues’. 

  “Building a happy, productive partnership is not easy.  The unrealistic expectations set up by our culture, media images of connubial bliss, romantic novels and song lyrics soon prove to be impossible to create, and reality then sets in,” says Dr. Tina Tessina.

  Dr. Tessina, better known as “Dr. Romance,” is a distinguished California psychotherapist and author of the book, Money Sex and Kids: Stop Fighting About the Three Things That Can Ruin Your Marriage. She says both men and women are at risk of postnuptial depression, because their expectations are often out of step with day-to-day marital life. 

  “Any situation in which the expectations are unrealistic can be considered a ‘set up’ for disappointment, which some people experience as depression,” she says. 

  In the months leading up to the wedding day the bride and groom often become the gravitational center of activity for family and friends. Some couples, especially the brides-to-be, spend so much time planning a wedding that they often fail to plan a survival strategy for the days afterwards; and when the wedding day spotlight disappears, so can a sense of purpose.  

  “People who are emotionally resilient rise to this challenge and work together to solve the problems and improve the relationship.  Those who are not resilient sink into despair and depression, and stop trying,” Dr. Tessina says. 

Signs of postnuptial depression may include

• 1. Lack of energy
• 2. Emotional withdrawal
• 3. Lack of sexual intimacy
• 4. Feelings of hopelessness, or despair
• 5. Frequent crying
• 6. Sleeplessness

  Roughly half of all U.S. marriages end in divorce, so it is normal to have some reservations about the sustainability of a new marriage, or suitability of a new spouse. It’s also difficult for some to move from the ‘me’ mindset of being single, to the ‘we’ mindset of being married. Unfortunately few people want to talk about postnuptial depression for fear it might trigger some trouble-in-paradise rumors, but experts say couples should communicate their difficulties to each other, and a professional. Antidepressant medications can help in severe cases, but most cases of postnuptial depression can be treated effectively with psychological therapy.

  “Counseling will also help you handle situations more effectively,” Dr. Tessina says, “and help you not create more drama and dysfunction in the relationship. “ 

  The best way to avoid postnuptial depression is through careful planning and maintaining perspective. First try not to put overblown significance on the wedding day. Certainly it is an important day, but it is still just another day. Before the big day it may help to delegate wedding responsibilities wherever you can, think about having a less lavish reception, try to avoid obsessions or being a perfectionist, and talk to friends and family about your stress. 

  It’s important to remember loving relationships are like flowers; they blossom quickly, need constant care and change with the seasons. Just watch out for the thorns and expect bees. 

Sean Kenniff, MD is a neurologist, radio host, and television journalist in Miami, Florida. 

Tina B. Tessina, PhD, also known as ‘Dr.Romance’, is a licensed psychotherapist in Southern California with over 30 years of experience counseling couples and individuals. She is the author of thirteen books on relationships including Money, Sex and Kids: Stop Squabbling About the Three Things That Can Ruin Your Marriage. Dr. Tessina also writes the Dr. Romance blog, and is a Relationships Expert for Redbook Love Network, Divorce360.com, and she answers relationship questions at Yahoo! Personals. She can be reached by visiting her website  http://www.tinatessina.com

Pregnancy is Possible Any Time of the Month

   For many women, having sexual intercourse during menstrual bleeding carries a lower risk of conception than having sex during mid-cycle. But it is still quite possible to become pregnant during menstruation for several reasons.

   Most women ovulate during mid-cycle, around days 12-16 of a 28-day cycle. But some women, especially teenagers and young adults, have irregular ovulation. The egg for the following cycle can be released from the ovary during menstrual bleeding or a few days afterward. Since sperm can survive for five days or longer in the uterus that egg can be fertilized.

   Women with shorter menstrual cycles (21 days) and longer periods (7-days) may be most at risk for conceiving during her period. Women often mistake other causes of vaginal bleeding with menstrual bleeding and sexual activity results in pregnancy. In fact it’s normal for some women to ‘spot’ or bleed a little during ovulation-the most fertile time of the cycle.

   The best way to prevent pregnancy is of course through abstinence and the judicious use of contraceptive devices and drugs. Birth control pills are very effective, but condoms have an added benefit. Some studies have show the risk of transmitting and contracting a sexually transmitted disease is increased during menstrual bleeding. -Sean Kenniff, MD

Breast Cancer Risk: Does Size Matter?

 Large-breasted women are often concerned they could be facing an increased risk of breast cancer. Conversely, smaller-breasted women often assume they have less of a risk. But studies have shown there is no clear association between breast size and the risk of developing breast cancer. 

 The breast is primarily made up of two types of tissue: glandular tissue like the milk ducts and the mammary glands, and stromal tissue like fat and fibrous tissue. Breast cancer tumors usually arise from the glandular tissues. And while larger breasts can contain more glandular tissue than smaller breasts, breast size is largely a reflection of the amount of fatty tissue in the breast. Though some studies have shown a weak correlation between large breasts and breast cancer, most studies have not. 

 However there is some evidence that breast density could be a risk factor for breast cancer. Denser breasts have relatively less fatty tissue and more glandular tissues. While it is normal for young women to have dense breasts, many studies suggest women with increased breast density after menopause could be at a slightly increased risk of developing breast cancer. 

 It’s important to note that overweight and obese women often have larger breasts, and they also have a higher risk of breast cancer. But this is probably not related to increased breast size, but rather to the excess estrogen produced by fat cells in the body. -Sean Kenniff, MD