1) Sexual desire and functioning can vary between individuals and fluctuate over time within an individual due to numerous factors. 2) Female sexual dysfunction (FSD), characterized by low sexual desire and inability to become aroused or orgasm, may be caused by relationship issues, mental health concerns like depression/anxiety, or physical factors like hormonal imbalances or medical conditions. 3) Treatment options depend on the underlying causes but may include addressing stress, relationship dynamics, medical issues, or pharmaceutical interventions in some cases.