Sexual desire, lust, libido, or as Sigmund Freud referred to it as, id, is the psychological mechanism inside a person’s brain that triggers the desire and need for sexual expression. When a person’s brain is healthy, so is their sexual desire. Millions of men, and millions of women, experience loss of sexual desire, also known as sexual arousal disorder, or SAD, which can be traced to imbalances in brain chemistry, particularly from the pituitary and hypothalamus glands. Many people may, in fact, be okay “physically” in regards to their sexual capacities however it’s their mental health that destroys complete and satisfying sexual experiences. When seeking ways to solve sexual disorders it’s wise to look at all the possible “causes” so all the symptoms can cease and normal, healthy sexuality can ensue.