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Premature Ejaculation
Low Female Arousal
Erectile Dysfunction

Increased Frequency Associated with Longevity: The findings Roizen uses to support his claims are a bit sketchy, originating from a 1997 study out of Wales that was published in the British Medical Journal. The researchers concluded that men who had at least two orgasms a week had less than half the risk of dying from a variety of ailments over 10 years, when compared to those with fewer orgasms.  This was before the era of Viagra.  

15 Lifetime Sex Partners Average in London: A 2000 survey found an increase in the number of reported lifetime heterosexual partners in Greater London males from 12 in 1990 survey to 15. Females admitted an increase from 4 to 7. Homosexual activity in past five years increased slightly from 4.8% to 5.5% for males but females increased dramatically from 1.4% to 3.9%. Paid sexual contract in past five years in 9% London and 4% other Britain males. IV Drug use ever down from 2.6% to 2.3% in males and 0.7% in females. Condom use up slightly to 24% for males. Intercourse before age 15 reported by 30% men and 26% women with no increase since 1995 with median age of 16 for both, down from age 17 25 years ago. 5.7% motherhood before 18, up by 0.8%. Abortion up to 5% before 18 vs. 2.5% 25 years ago. Those not having discussion about sex with parents actually had slightly lower rate of early intercourse, although less early motherhood. Later menarche strongly associated with less early intercourse, as was more education. 12/1/01 Lancet.

Gays a Small Minority: A sociological study published by the progressive Alan Guttmacher Institute, that interviewed over 3,300 men throughout the country in 1991, found that only 2.3% of those interviewed admit to a same sex experience in the last ten years; only 1.1% say they have been exclusively gay. the National Health and Social Life Survey conducted in 1992 by the National Opinion Research Center (University of Chicago). Based on a random sample of 3,432 U.S. residents, it found that 2.8% of men and 1.4% of women self-identified as gay. The study also found that in the 12 largest metropolitan areas, gay-identified men were 10.2% higher than in the suburbs, (corresponding figure for women was 2.1% higher).

Sex Problems Very Common: Nazareth assessed the sexual health of 1512 people attending 13 general practices in London. 22% men and 40% of women had a sexual problem diagnosable by ICD-10, although the notes of only 3-4% had an entry relating to sexual function. Erectile failure and lack or loss of sexual desire were the most common problems in men. Lack or loss of sexual desire and failure to orgasm were the most common among women. 33% women 28% men dissatisfied. 49% women & 63% men satisfied with sex in previous four weeks. BMJ 8/22/03. Mercer analyzed data from a national survey of sexual attitudes and lifestyles of 11,161 British adults and found that the most common short term problems among women were lack of interest in sex, inability to experience orgasm, and painful intercourse. Among men the most common problems were lack of interest, premature orgasm, and anxiety about performance. Many people avoid sex because of these problems but few seek professional help. BMJ 8/22/03

Homosexual & Heterosexual Different Response to Fluoxetine: The hypothalamus is very important to sexual functioning. Nov. 12, 2003, Annual Society for Neuroscience conference in New Orleans. Howard Moltz, University of Chicago. Differential Cerebral Glucose Metabolic Patterns in Exclusively Homosexual and Exclusively Heterosexual Men Produced by a Selective Serotonin Reuptake Inhibitor. They screened 80 sexually active men in their 20s and 30s and choose eight exclusively homosexual and eight exclusively heterosexual men. The hypothalamus is strongly connected with sexual activity. Serotonin is associated with sexual behavior and arousal. They gave fluoxetine (Prozac) which selectively inhibits the reuptake of serotonin in the brain or placebo. 90 minutes after having received the drug, subjects were given radioactive glucose, which provides a marker for a Positron Emission Tomography (PET) brain scan to determine where in the brain the drug acted to inhibit the reuptake of serotonin. The heterosexual men had a much stronger response in the hypothalamus to the Prozac than did the homosexual men

Nefazodone Helpful for Sexual Obsessions for SSRI Failures: 14 patients with sex obsessions and compulsions but not paraphilias. All unsuccessful on at least 2 SSRIs at sex clinic. Nine comorbid depression, 4 anxiety disorder, 1 substance abuse. Treatment averaged 13 months at 200mg/d. One dropped out. 5 complete remission sex symptoms and 6 decreased. 3 stopped due to side-effects. No sex side-effects. Coleman, U Minn, J Clin Psych 00;61:282

Naltrexone Helped with Excessive Sex Drive in SSRI Cases: 42yo female with depression, cocaine urges, and inability control sex. Fluoxetine to 60mg/d helped depression only. Naltrexone 100mg/d helped excessive sex drive. Fluoxetine switched to citolapram due to sedation and decreased libido and naltrex had to be increased to 150mg/d. 62yo man depressed, masochistic fantasies & extramarital affairs. Multiple SSRIs and nefazodone without benefit. Citalopram 40mg/d but still strong urges. Naltrexone 50/d helped dramatically but needed increase to 100/d after 2 months. Raymond, Int Clin Psychoph 02;17:201 U Minn

Sex Offender Habits Start Young: Gene Abel of Emory University studied 300 New York and Memphis sex offenders. The average age for deviant patterns becoming established: age 15 for voyeurs, age 18 pedophils and exhibitionists, age 19 molesters of girls, and age 21 for rapists. The average offender under age 18 had 7 offenses of abuse while 240 adult offenders averaged 380 offenses. AP 10/23/04.

Impotence Highest in Japan; Exercise, Alcohol Good: 600 men ages 40-65 in each country were surveyed about their "ability to attain and maintain an erection satisfactory for sexual intercourse," and the men were classified as not having ED if they answered "always" and as having mild, moderate, or complete ED if they answered "usually," "sometimes," or "never," respectively. The age-adjusted prevalence of moderate or complete ED was 34% in Japan, 22% in Malaysia, 17% in Italy, and 15% in Brazil. The overall age-specific prevalence of moderate or complete ED was 9% for men aged 40 to 44 years, 12% for 45 to 49 years, 18% for 50 to 54 years, 29% for 55 to 59 years, 38% for 60 to 64 years, and 54% for those 65 to 70 years. The increased risk of ED was associated with diabetes, heart disease, lower urinary tract symptoms, heavy smoking, and depression and increased by 10% per year of age. It was inversely associated with education, physical activity, and alcohol drinking. Epidemiology of erectile dysfunction in four countries: cross-national study of the prevalence and correlates of erectile dysfunction. Nicolosi A, Moreira ED, Shirai M, Ismail Bin Mohd Tambi M, Glasser DB. Urology 2003 Jan;61(1):201-6

Yohimbine No Help for Impotence: In a DB PC crossover study of 29 impotence men treated for 25 days each with yohimbine or placebo, 11% improved on yohimbine vs. 7% on placebo. A total of 56% on yohimbine vs. 52% on placebo said they noticed no improvement at all. There were two severe side-effects. Kunelius P, et al: Is high-dose yohimbine hydrochloride effective in the treatment of mixed-type impotence? A prospective, randomized, controlled double-blind crossover study. Urol 97;49:441-4.

Painful Female Intercourse Treated with Physical Therapy: In a well designed study of 29 women with pain on intercourse, 19 hours of physical therapy emphasizing various organ manual mobilization techniques to stretch or break adhesions was very successful at decreasing pain, increasing satisfaction, and increasing desire and lubrication. Sessions lasted 1-2 hours once a week. 12/04. Ed: A word of caution: the study had no random assignment, only a simple pre- post- measurement.  The first author, Lawrence Wurn of Gainesville, Florida, has patented his technique, giving him a very heavy financial stake in the outcome.