Monthly patterns of testosterone and behavior in prospective fathers.

Marnia's picture
Submitted by Marnia on
Printer-friendly version

[Abstract on testosterone research...hinting at how mind overtakes matter...and how the sexes have subtle connections they aren't consciously aware of]

The individual time patterns of salivary testosterone of adult healthy men, self-reported sexual behavior and their co-occurrence with regular weekly or monthly intervals were studied. Twenty-seven volunteer males (mean age 33 +/- 1 years) collected daily morning saliva over a period of 90 days. Evening questionnaires provided daily information on sexual activity. From the saliva, testosterone immunoreactive substances were determined using enzyme immunoassay. To detect events in which increases of testosterone were associated with sexual activity and at the same time controlling for regular internal patterns in men, data were analyzed using Theme software. First results indicated a varying number of complex nonrandom interaction patterns of testosterone with sexual activity, but also with weekly (i.e., Saturdays) and monthly intervals (i.e., 28-day full-moon intervals).

The social context of the occurrence of specific pattern combinations was elaborated using parameters from the men's self-reported general life history profiles. Peak hormone levels occurred around weekends in the majority of the males.

The 28-day monthly interval coincided with testosterone peaks only in those of the paired men who reported a current wish for children ("prospective fathers"), but not in unpaired men or in those who did not wish to have children with their current partner.

Rather than representing a direct regular pattern of the male testosterone per se, the observed patterns suggest that men have the facultative potential to adjust their testosterone responses to their female partner's cycle. In line with the interactions between behavior and androgens observed in vertebrates in general, this study adds an example of the mutual character of hormone-behavior interactions and, thus, for the social context of testosterone patterns in human males.

____
http://www.ncbi.nlm.nih.gov/pubmed/12367570

Hirschenhauser K, Frigerio D, Grammer K, Magnusson MS.
Horm Behav. 2002 Sep;42(2):172-81.
Instituto Superior de Psicología Aplicada, Unidade de Investigação em Eco-Etología, Lisbon, Portugal. katarina@ispa.pt

Thank you Marnia!

Marnia, I love it when you talk data!

Isn't it cool that the person's intentions (i.e. prospective fatherhood) were driving the biology and not the other way around? That kind of result makes me tingle all over. Do it again, Marnia! :) Wink

P.

Yes, very cool

And doesn't that suggest that by engaging our willpower and redirecting our sexual energy it makes perfect sense that we can adjust to a practice like karezza? Smile

Maybe

the reason only prospective fathers show a monthly cycle is that their wives are not on the pill and are therefore ovulating, and they then synchronize their testosterone with that.

Altho I'm willing to bet it's not been researched...

Has anyone ever studied male sexual response/libido, or testosterone levels, in men partnered with women with whom they've just had a child, and the resulting potential response to male libido or testosterone levels as influenced by a lactating female? In working thru my issues in marriage thru the years, I've paid a lot of attention to triggering mechanisms, and have wondered about this one.

Sometimes the truth isn't good enough. Sometimes people deserve more; sometimes people deserve to have their faith rewarded.

Yes, I think

quite a bit of research is coming out now on hormonal changes in men during mate's pregnancy and fatherhood. There are definitely changes.

But there are also a lot of unhappy men, who's needs for affection are not met once biology jerks Mom's attention to the new set of genes in diapers.....

Wet dreams like periods?

This is an interesting thread. I love it how the male testosterone levels can follow the cycle of the woman. Parallels between two loving partners are amazing.

I have read elsewhere that there is another parallel: The male nocturnal emission (wet dream) with the woman's menstrual cycle. In that the female body is ridding itself of the "old" via menstruating, the male body is ridding itself of the "old" via the wet dream. Anecdotal evidence shows that in the absense of masturbation and porn use, men will have wet dreams approximately every thirty days--just like her period!

Now I would love to see reports of couples who practices Karezza long enough to see if this eventual co-mingling of the two cycles occurs.

My sample size is small (N=1) but this has happened to me in the recent past. The very few wet dreams that I have had, always seemed to happen during my wife's period.

David

That's fascinating

I was totally unaware of that research.

I definitely think this practice brings couples into sync in subtle ways, though. Someday, none of this will be mysterious. Smile

The original Stuyd

Marnia, I went back and read your original post that initiated my interest in the notion of the "male period" in the first place. It remains fascinating. (please see below) The study showed two fascinating things:

1. peak testosterone was on weekends for men who did not intend to have children
2. peak testosternone was monthly for paired men who DID want children.

Given that "facultative" ability you mention, I wonder if the weekends are a response to today's Monday through Friday work schedule? Might some males be preparing themselves for weekend play?

Perhaps the "male period" is really related to signals given off by the female. This could explain all sorts of ejaculatory behaviors:

* Men who go out on weekends to bars and such may be exposed to certain female signals such that they produce their testosterone peak on weekends.
* Men who are around a woman whom they wish to have children receive signals that create a monthly peak.
* Maybe men who are around a particular woman (like a spouse) who has no intention of being impregnated by the male will produce his testosterone peak much more slowly.

Could THIS have an impact on the number and frequency of wet dreams? Hummm.....This is a fascinating study you cite indeed.

David
[quote=Marnia][Abstract on testosterone research...hinting at how mind overtakes matter...and how the sexes have subtle connections they aren't consciously aware of]

The individual time patterns of salivary testosterone of adult healthy men, self-reported sexual behavior and their co-occurrence with regular weekly or monthly intervals were studied. Twenty-seven volunteer males (mean age 33 +/- 1 years) collected daily morning saliva over a period of 90 days. Evening questionnaires provided daily information on sexual activity. From the saliva, testosterone immunoreactive substances were determined using enzyme immunoassay. To detect events in which increases of testosterone were associated with sexual activity and at the same time controlling for regular internal patterns in men, data were analyzed using Theme software. First results indicated a varying number of complex nonrandom interaction patterns of testosterone with sexual activity, but also with weekly (i.e., Saturdays) and monthly intervals (i.e., 28-day full-moon intervals).

The social context of the occurrence of specific pattern combinations was elaborated using parameters from the men's self-reported general life history profiles. Peak hormone levels occurred around weekends in the majority of the males.

The 28-day monthly interval coincided with testosterone peaks only in those of the paired men who reported a current wish for children ("prospective fathers"), but not in unpaired men or in those who did not wish to have children with their current partner.

Rather than representing a direct regular pattern of the male testosterone per se, the observed patterns suggest that men have the facultative potential to adjust their testosterone responses to their female partner's cycle. In line with the interactions between behavior and androgens observed in vertebrates in general, this study adds an example of the mutual character of hormone-behavior interactions and, thus, for the social context of testosterone patterns in human males.

____
http://www.ncbi.nlm.nih.gov/pubmed/12367570

Hirschenhauser K, Frigerio D, Grammer K, Magnusson MS.
Horm Behav. 2002 Sep;42(2):172-81.
Instituto Superior de Psicología Aplicada, Unidade de Investigação em Eco-Etología, Lisbon, Portugal. katarina@ispa.pt[/quote]

I bet it does!

I hardly think much of this stuff is mere coincidence. So much cause and effect going on that we don't understand....or choose to ignore.

Hang in there Seeker.

David