Libido in Latin means "desire, longing, fancy, lust, or rut. Libido is influenced by hormones such as testosterone and other androgens, and also by neurotransmitters such as dopamine. Libido enhancers made a great difference in our sexual activities.

Sexual desire, or libido, consists of thinking about sex, fantasizing about sex, the development of "sexual tension" and the awareness of a need for sexual release. Sexual dysfunction is common in men undergoing surgical treatment for prostate enlargement or cancer.

Sexual health is a state of physical, emotional, mental and social well-being in relation to sexuality; it is not merely the absence of disease, dysfunction or infirmity.

Women especially tend to feel guilty about having lost their desire for sex, and often blame themselves for these feelings. Sexual health is influenced by a complex web of factors ranging from sexual behaviour and attitudes and societal factors, to biological risk and genetic predisposition. Sexual health can also be influenced by mental health, acute and chronic illnesses, and violence.

Sexual health represents a new thematic area of work for the Department of Reproductive Health and Research. Sexual health is a state of physical, emotional, mental and social well-being in relation to sexuality; it is not merely the absence of disease, dysfunction or infirmity.

Sexual health requires a positive and respectful approach to sexuality and sexual relationships, as well as the possibility of having pleasurable and safe sexual experiences, free of coercion, discrimination and violence. Sexual health and well-being are components of a good quality of life. Sexual health refers to all aspects of healthy sexuality.