TABLE 6-7 Sexual Behavior Throughout the Life Cycle

Age Development of Sexual Behavior

First 18 mo

  • Major source of pleasure from touch and oral exploration.

First 18 mo

  • Major source of pleasure from touch and oral exploration.

18 mo-3 yr

  • Pleasurable and sexual feelings are associated with genitals (acts of urination and defecation). Masturbation without fantasy or eroticism.

3-6 yr

  • Beginning resolution of Oedipus and Electra complexes; foundation for heterosexual relationships; masturbation with curiosity about genitals of opposite sex.

6-12 yr

  • Peer relations with same sex; onset of sex play; morality and sexual attitudes taught and learned; phase of sexual tranquility.

12-18 yr (adolescence)

  • Onset of puberty with biological development of secondary sex characteristics; menstruation and ejaculation occur.
  • Frequent masturbation. Intense anxiety and guilt may occur over heterosexual or homosexual behavior (petting, coitus, masturbation, STD, pregnancy, genital size).

18-23 yr (early adulthood)

  • Maximum interpersonal and intrapsychic self-consciousness about sexuality. Issues: premarital coitus, sexual freedom.
  • Anxiety about: sexual competency, genital size, impotence, fear of pregnancy, rejection.

23-30 yr

  • Focus on sexual activity in coupling and parenthood; mutual masturbation.

30-45 yr (middle adulthood)

  • For women—peak sexuality without new sexual experiences. Conflict regarding extramarital sex may increase.
    Purpose of Interourse:
  • Need for body contact (and procreation until age 35+).
  • Physical expression of trust, love, and affection.
  • Reaffirmation of self-concept as sexually desirable and sexually competent due to worry about effects of aging.
    Sexual Dysfunctions:
  • Men: erectile dysfunction, premature ejaculation, decreasing libido.
  • Women: intermittent lack of orgasmic response, vaginismus, dyspareunia.
  • For either or both: changes or divergences in degree of sexual interest.
    Causes of Sexual Dysfunction (Men):
  • Overindulgence in food or drink.
  • Preoccupation with career and economic pursuits.
  • Mental or physical fatigue.
  • Boredom with monotony of relationship.
  • Drug dependency: alcohol, tobacco, certain medications.
  • Fear of failure.
  • Chronic illness: diabetes, alcoholism —> peripheral neuropathy —> impotence (smoking and drinking may result in decreased testosterone production); excessive smoking —> vascular constriction —> decreased libido; spinal cord injuries; prostatectomy, androgen deprivation therapy (for prostate cancer).
  • Self-devaluation due to accumulation of role function losses, sexual self-image, and body image.
  • Past history of lack of-sexual enjoyment in younger years.
    Causes of Sexual Dysfunction (Women):
  • Belief in myths regarding “shoulds and should nots” of frequency, variations, and enjoyment.
  • Widowhood: inhibition and loyalty to deceased.

45-65 yr (later adulthood)

  • Menopause occurs.
  • Little or no fear of pregnancy; evidence of sexual activity differences in men and women: women may have increased pleasure, men take longer to reach orgasm; may prefer less strenuous mutual masturbation.

Over 65 yr (old age)

  • Activity depends on earlier sexual attitude.
  • May suffer guilt and shame when engaging in sex.
  • Can have active and enjoyable sex life with continuing sex needs.
  • Age is not a barrier provided there is opportunity for sexual activity with a partner or for sublimated activities. Women in this age group outnumber men; single women outnumber single men by an even larger margin.