Loss of libido (sex drive) is a common problem affecting up to 1 in 5 men – and even more women – at some point in their life.

It's often linked to professional and personal stress, or important life-changing events such as pregnancy, childbirth or breastfeeding.

However, an unexpected loss of libido – especially when it lasts for a long time or keeps returning – can also indicate an underlying personal, medical or lifestyle problem, which can be upsetting to both partners in a relationship.