If any of these statements apply to you, there are many medical, psychological and social reasons why that could be. But one you may not have considered is you just don't want to have sex — at least not as much as you think is normal — and that's not necessarily an issue. Just like if you don't want to run a marathon, it doesn't matter that you can't run 10 kilometres an hour, explains Amanda Newman, a women's health specialist GP from Jean Hailes for Women's Health. Andrea Waling, a researcher from the Australian Research Centre in Sex, Health and Society, says while our acceptance of diverse sex drive is increasing — the rise of asexuality being one example — many people still feel pressure to have a normal libido. We'll unpack some things you might not have considered that can influence it, but also explain why your libido might be just fine as it is — high or low. Emily Harris, who studied sexual desire through her work at the University of Queensland, says libido fluctuates in two ways. Then, she explains, there are broader changes that can influence libido, such as ageing, having children, stress and relationship satisfaction. Dr Ariana says the frequency of sexual intercourse has nothing to do with libido and satisfaction. A study shows about 70 per cent of Australian women aged 40 to 65 experience a lack of sexual desire.