Study's findings on orgasmic frequency

[Structure]

This study looked at 100 random army recruits between the ages of 18 to 22. This way, we can isolate the age factor out of the equation; this is a study looking at the libidos of healthy young men, in their prime:

Mantzoros CS, Georgiadis EI, Trichopoulos D. Contribution of dihydrotestosterone to male sexual behaviour. BMJ. 1995 May 20;310(6990):1289-91.

"Participants in the present study were 100 consecutively enrolled male army recruits aged 18-22 who consented to having a single blood sample drawn between 900 and 1100 am during their first day in the army. Subjects were healthy and were taking no medication. "

"Table I shows representative values of the demographic and lifestyle variables. The mean (SD) weekly number of orgasms was 3.9 (1.9), the median and the mode 3.5, the range 0 to 11, and the first and third quintiles 2.2 and 5.5, respectively. "

This means that the majority of men in their prime shoot one off once every two days.

The guy shooting the most loads per week was 11. They guy shooting the least number of loads was 0. I've seen more than a few posts stating that a normal, healty libido means daily orgasms. This is double what most of in the study are doing. Even the top quintile, that is the top 20% of men, is at 5.5 orgasms per week in this study. That means that on average, even the top guns aren't shooting one off every single day. It is like arguing that you have a small cock unless it is 10" long. Sure, there's plenty of guys in the world that are in this category, but there's certainly nothing normal or typical about this figure, not even when you isolate the population to healthy, fit men in the prime of their youth.

I wonder how many people on this forum have the wrong idea of what a healthy libido is? Maybe if they knew better they wouldn't be so quick to think that their libidos were deficient.

Link: Contribution of dihydrotestosterone to male sexual behaviour -- Mantzoros et al. 310 (6990): 1289 -- bmj.com

 

[zkt]

This study looked at 100 random army recruits between the ages of 18 to 22. This way, we can isolate the age factor out of the equation; this is a study looking at the libidos of healthy young men, in their prime:

Mantzoros CS, Georgiadis EI, Trichopoulos D. Contribution of dihydrotestosterone to male sexual behaviour. BMJ. 1995 May 20;310(6990):1289-91.

"Participants in the present study were 100 consecutively enrolled male army recruits aged 18-22 who consented to having a single blood sample drawn between 900 and 1100 am during their first day in the army. Subjects were healthy and were taking no medication. "

"Table I shows representative values of the demographic and lifestyle variables. The mean (SD) weekly number of orgasms was 3.9 (1.9), the median and the mode 3.5, the range 0 to 11, and the first and third quintiles 2.2 and 5.5, respectively. "

This means that the majority of men in their prime shoot one off once every two days.

The guy shooting the most loads per week was 11. They guy shooting the least number of loads was 0. I've seen more than a few posts stating that a normal, healty libido means daily orgasms. This is double what most of in the study are doing. Even the top quintile, that is the top 20% of men, is at 5.5 orgasms per week in this study. That means that on average, even the top guns aren't shooting one off every single day. It is like arguing that you have a small cock unless it is 10" long. Sure, there's plenty of guys in the world that are in this category, but there's certainly nothing normal or typical about this figure, not even when you isolate the population to healthy, fit men in the prime of their youth.

I wonder how many people on this forum have the wrong idea of what a healthy libido is? Maybe if they knew better they wouldn't be so quick to think that their libidos were deficient.

Link: Contribution of dihydrotestosterone to male sexual behaviour -- Mantzoros et al. 310 (6990): 1289 -- bmj.com

Got anything on the 60+ crowd?

 

[Structure]

Got anything on the 60+ crowd?

There's even more data on this demographic. Here's one paper that I came across:

Araujo AB, Mohr BA, McKinlay JB. Changes in sexual function in middle-aged and older men: longitudinal data from the Massachusetts Male Aging Study. J Am Geriatr Soc. 2004 Sep;52(9):1502-9. Changes in sexual function in middle-aged and olde... [J Am Geriatr Soc. 2004] - PubMed result

OBJECTIVES: To describe within-individual change in sexual function over a 9-year period and to determine whether the amount of change differs by age group.

DESIGN: Cohort study; participants interviewed at baseline (1987-89) and follow-up (1995-97).

SETTING: Population-based; communities surrounding Boston, Massachusetts.

PARTICIPANTS: One thousand eighty-five men aged 40 to 70 at baseline (born between 1917 and 1947) with complete baseline and follow-up sexual function data.

MEASUREMENTS: Within-person change (follow-up minus baseline) in the following sexual function variables: sexual intercourse, erection frequency, sexual desire, ejaculation with masturbation, satisfaction with sex, and difficulty with orgasm.

RESULTS: Unadjusted analyses showed significant longitudinal changes over the 9-year period in all domains of sexual function except frequency of ejaculation with masturbation, which showed no change between baseline and follow-up. Adjusted for baseline sexual function, within-person change in all outcomes was strongly related to age, with decline in sexual function becoming more pronounced with increasing age. For example, over the 9-year study period, sexual intercourse or activity frequency decreased by less than once per month, two times per month, and three times per month in men in their 40s, 50s, and 60s, respectively. Number of erections per month declined by 3, 9, and 13 in men in their 40s, 50s, and 60s, respectively.

CONCLUSION: This research fills a major gap in the literature by providing age-specific estimates of change in sexual functioning over a 9-year period in a cohort of unselected men.

Here's a chart that sums up the results nicely:

 

[zkt]

Bet they didnt have anyone on TRT in that study !

There's even more data on this demographic. Here's one paper that I came across:

Araujo AB, Mohr BA, McKinlay JB. Changes in sexual function in middle-aged and older men: longitudinal data from the Massachusetts Male Aging Study. J Am Geriatr Soc. 2004 Sep;52(9):1502-9. Changes in sexual function in middle-aged and olde... [J Am Geriatr Soc. 2004] - PubMed result

OBJECTIVES: To describe within-individual change in sexual function over a 9-year period and to determine whether the amount of change differs by age group.

DESIGN: Cohort study; participants interviewed at baseline (1987-89) and follow-up (1995-97).

SETTING: Population-based; communities surrounding Boston, Massachusetts.

PARTICIPANTS: One thousand eighty-five men aged 40 to 70 at baseline (born between 1917 and 1947) with complete baseline and follow-up sexual function data.

MEASUREMENTS: Within-person change (follow-up minus baseline) in the following sexual function variables: sexual intercourse, erection frequency, sexual desire, ejaculation with masturbation, satisfaction with sex, and difficulty with orgasm.

RESULTS: Unadjusted analyses showed significant longitudinal changes over the 9-year period in all domains of sexual function except frequency of ejaculation with masturbation, which showed no change between baseline and follow-up. Adjusted for baseline sexual function, within-person change in all outcomes was strongly related to age, with decline in sexual function becoming more pronounced with increasing age. For example, over the 9-year study period, sexual intercourse or activity frequency decreased by less than once per month, two times per month, and three times per month in men in their 40s, 50s, and 60s, respectively. Number of erections per month declined by 3, 9, and 13 in men in their 40s, 50s, and 60s, respectively.

CONCLUSION: This research fills a major gap in the literature by providing age-specific estimates of change in sexual functioning over a 9-year period in a cohort of unselected men.

Here's a chart that sums up the results nicely:

 

[Michael Scally MD]

I have not had the opportunity to read and review the following article. I sent for a copy from the author after seeing the thread. Enjoy!

Theoretical model of the impact of PRL secretion following orgasm. PRL may influence peripheral reproductive organs, and/or may feedback to dopaminergic systems in the central nervous system, recognized to play an important role in the regulation of sexual behavior.


Kruger TH, Hartmann U, Schedlowski M. Prolactinergic and dopaminergic mechanisms underlying sexual arousal and orgasm in humans. World J Urol 2005;23(2):130-8. Prolactinergic and dopaminergic mechanisms underly... [World J Urol. 2005] - PubMed result

Dopaminergic mechanisms play a major role in modulating sexual behavior in humans and animals. Animal data demonstrate important interactions between the dopaminergic and prolactinergic system. As recently demonstrated, dopamine agonists have facilitatory properties for penile erection but may also enhance sexual drive and orgasmic quality. In contrast, chronic elevations of prolactin inhibit appetitive as well as consummatory parameters of sexual behavior. Recent human studies show a marked increase in prolactin after orgasm in males and females. Concerning the biological relevance of acute prolactin alterations after orgasm, prolactin might serve as a neuroendocrine reproductive reflex for peripheral reproductive organs. Alternatively, prolactin may feedback to dopaminergic neurons in the central nervous system and thereby modulate sexual drive and satiation. Here, we provide a brief overview of the physiology of dopamine and prolactin in regulating sexual behavior. In addition, recent experimental and clinical evidence for a postulated feedback mechanism for prolactin and its implications for orgasmic disorders are discussed.