And off to bed

There are many health benefits for those who enjoy regular sex. Lucy Atkins looks at the latest scientific research

It does not take a degree in medicine to work out that sex is good for you. Anything that is free, feels fabulous and leaves you glowing is plainly a good idea. But scientists are now beginning to understand that the perceived feel-good effects of sexual intercourse are merely the tip of the iceberg. Sex, they are discovering, can help protect you from depression, colds, heart disease and even cancer.

The latest addition to the body of evidence came last month when Professor Stuart Brody of the University of Paisley published a study showing that sex can lower blood pressure. According to Professor Brody: “We’re not just talking about the immediate effects of having had nice sex. The beneficial effects could last at least a week.” One theory is that intercourse stimulates a variety of nerves, most notably the “vagas” nerve, which is directly involved in soothing and calming.

To see these benefits, you have to go the whole heterosexual hog. According to Professor Brody, studies show that “penile-vaginal intercourse is the only sexual behaviour consistently associated with better psychological and physiological health”.

Such sex has been linked, in women, to a heightened emotional awareness, possibly because of the “love-hormone” oxytocin that is released. One study even found that semen is a mood-enhancing ingredient.

Doctors speculate that this is because semen contains several other mood-altering hormones - including testosterone, oestrogen, prolactin and several different prostaglandins - which can pass into the woman’s bloodstream. This explanation, says Dr David Hicks, sexology specialist and consultant in GU medicine at the Royal Hallamshire Hospital in Sheffield, “is certainly feasible”. Condom-free sex has its drawbacks, of course: contracting HIV or any other sexually transmitted disease, or becoming pregnant unintentionally.

If you are dogged by the sniffles at this time of year, regular love-ins could work wonders for your immunity - condoms and all. Psychologists have found that people who have sex once or twice a week have levels of immunoglobulin A (IgA) that are up to one third higher than their more restrained peers. IgA is an antibody that boosts the immune system and is the first line of defence against colds and flu.

The health benefits for middle-aged men are also particularly persuasive. Recent studies suggest that men who have orgasms twice a week are half as likely to die early as men who orgasm less than once a month. The more frequently men ejaculate, the less likely they are to develop prostate cancer, and if middle-aged men have sex twice a week or more they also have a lower risk of heart attack.

Much has been made of the slimming and toning effects of a sexual work-out. In fact, sex probably burns off about the same number of calories per minute as a brisk walk. “You get all the benefits of exercise,” confirms Dr Hicks. “This includes the release of endorphins, raised heart rate, moving the muscles and joints. One study even showed that arthritis can be delayed by regular sex.”

You might also look younger. “Regular sex makes you feel younger as you are more relaxed, satisfied and less stressed,” says Dr Kevan Wylie, consultant andrologist at the Royal Hallamshire Hospital.

“Sex has huge mental benefits,” adds Dr Hicks: “It’s the outward proof that you are wanted, desired and valued.” And if you feel sexy, you tend to look it, too.

Sex is not, sadly, a cure all. “There is a danger in thinking that we can fix anything by leaping into bed,” says Dr Petra Boynton, a psychologist at University College in London specialising in sex and relationships. “The fact is you are likely to have a much better sex life if you are healthy and happy, rather than the other way round.” Still, it can’t hurt to try.

Sex could make you…

Calm: up to a week after intercourse your blood pressure remains lower, helping you to cope with stressful situations.

Happy: semen could have antidepressant qualities and hormones released during sex include oxytocin, which promotes loving feelings, as well as endorphins, the “feel-good” hormones.

Healthy: regular sex raises your levels of a cold-fighting antibody. It might protect men against prostate cancer and heart disease.

Youthful: sex increases longevity, might improve skin tone, and gives you a glow.

Serene: touch, which one sexuality specialist calls “vitamin T”, has been shown to reduce stress. Deep breathing, as any yoga fanatic will confirm, also reduces stress, and profound post-coital relaxation can certainly improve your sleep quality.

Pain free: sex has been shown to relieve some of the symptoms of PMT, arthritis and, yes, headaches because of the release of endorphins - nature’s opiates.

Grounded: intercourse, ideally with the same partner, creates an emotional and physical bond that is a vital part of the social support we all need in order to feel truly happy.

Posted by Phil Peterson on Tuesday, April 25, 2006 at 11:11 AM in Health
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