#1: Hormonal Imbalance
Testosterone, estrogen, oxytocin etc. are hormones that influence your libido and s*x life. Hormone imbalance can disrupt a number of normal bodily functions, sêx included.
Hormonal imbalance is one of most common causes of sêxual disinterest. To fix this, visit your urologist (for men) or ob-gyn (for women).