Home > Sex Sex All sections in Sex » Great Sex » Safe sex » Problems » Relationships » Sexual Diversity » Sex News » Tools and quizzes » Great Sex Guides » Sex tips The mystery of the female orgasm solved? Was it necessary for reproduction? It may have an evolutionary purpose, scientists say. Sex News US STIs hit all-time high in 2015 According to a high-ranking official, STI rates in the USA are rising and many of the country's systems for preventing STIs have become eroded. More in Sex News A happy spouse may keep you healthy What switches our sex drive on and off? Is Candida a sexually transmitted infection? Sex healthy for ageing women, but risky for older men Sex Help, my STI is incurable! Many people think that as long as it’s not HIV/Aids, any sexually transmitted infection can be cured without too much trouble – but nothing could be further from the truth. See all Sex » How to Have Great Sex What switches our sex drive on and off? New research seeks to shed some light on the nature of sexual desire – how it differs between people and within the same person at different times. See all How to Have Great Sex » News Sex healthy for ageing women, but risky for older men Satisfying sexual activity poses cardiovascular risks for ageing men, but could actually protect older women from certain health problems, researchers say. See all News » Sex tips SEE: What happens to your body during sex? There are 4 stages of sex and each one affects the body differently. See all Sex tips » Take action Check Are you a sex addict? » Ask Sexologist » Join Health24 on Facebook » Quiz Are you ready for sex? » SEE: What happens to your body during sex? How porn addiction can affect your sex life News Is Candida a sexually transmitted infection? Candida is a common yeast infection that may affect the sexual organs – but can it actually be classified as an STI? See all News » News 8 STIs you’ve probably never even heard of Most of us have at least heard of sexually transmitted diseases like syphilis, gonorrhoea and chlamydia, but there's a lot more lurking beneath the murky surface. We take a look at 8 lesser-known STIs. See all News » Safe Sex Routine genital herpes screening not recommended Unless someone has symptoms of genital herpes, testing offers little benefit because the sexually transmitted disease has no cure. See all Safe Sex » News 7 facts about genital herpes Genital herpes might not kill you, but once you're infected, there's no getting rid of it. Here are seven facts you need to know about the disease. See all News » advertisement From our sponsors Keep an eye on your vision Which skin products are better, ‘medical grade’ or ‘over-the-counter’? Win 1 of 6 R5000 cash prizes Win a R2 000 Skin Renewal voucher Live healthier Exercise benefits for seniors » Working out in the concrete jungle Even a little exercise may help prevent dementia Here’s an unexpected way to boost your memory: running Seniors who exercise recover more quickly from injury or illness When sedentary older adults got into an exercise routine, it curbed their risk of suffering a disabling injury or illness and helped them recover if anything did happen to them. No relief for MS » Drug shows promise against MS in mouse study Vitamin D may slow multiple sclerosis Obesity in girls tied to higher MS risk Exercise may not lower women's risk of MS A Harvard study showed no evidence to support the idea that exercise lowers the risk of multiple sclerosis.