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einstein
01-17-2006, 11:30 AM
From

the BBC

News
http://news.bbc.co.uk/2/hi/health/4614842.stm



A woman's body odour can help her attract men when she is at her most fertile and repel them when she is not,

scientists have said.



According to a report in the journal Ethology, when a woman is at the most

fertile part of the menstrual cycle her armpit odour is at its mildest.

But when she is having a period, and

not ready for pregnancy, the smell changes to an acute, repellent odour.

The researchers studied 12 women who

wore armpit pads for 24 hours a day.

A number of primate species display changes during their fertile period,

but the majority of scientists believed that this was not the case with humans.

Subconscious cue



The 12 women were restricted from eating certain foods and from using deodorant or hormonal contraceptive.



They provided odour samples on the armpit pads, which were then presented to 42 men, who sniffed them and assessed

the attractiveness of the scent.

"Axillary odour from women in the follicular phase was rated as the most

attractive and least intense," the study's leader Dr Jan Havlicek, from Charles University in Prague, Czech

Republic, said.

"The results suggest that body odour can be used by men as a cue to the fertile period in

current or prospective sexual partners," he added.

A previous study by the same team suggested that women

subconsciously prefer the aroma of dominant men when they are at the most fertile stage of the menstrual cycle.



Then the researchers asked 48 men to assess how dominant they felt.

The men then wore cotton pads in their

armpits for 24 hours, which were subsequently presented to 65 women. Those who were ovulating rated the "dominant"

men as sexiest, but there was no similar pattern among women at other stages of their menstrual cycle.

jvkohl
01-17-2006, 10:18 PM
The unconscious

affect of progesteronic pheromones on luteinizing hormone and testosterone (reduced testosterone) compared to the

unconscious affect of estrogenic pheromones (e.g., copulins) on testosterone (presumably via luteinizing hormone)

explains these findings. Progesterone levels are highest near menses, estrogen levels are highest near ovulation.

It's not only axillary odor that is influenced by the hormone cycle in women; it's any production of all natural

body odor. But we can't have men being subjected to testing the vaginal odors of women, can we?

In other

animals, the hormone driven changes are responsible for properly timed reproductive sexual behavior.



JVK

Gegogi
01-17-2006, 10:26 PM
I wonder how much the odor varies

according to race? Some of my white and black GFs suffered from acute and repellent odors during their menstrual

period whereas my Asian GFs were neutral and unnoticable during this time.

Friendly1
01-17-2006, 10:53 PM
I believe it. I have been

around a woman lately whose body odor was pretty rough when I met her a week ago. Tonight it wasn't so bad. Maybe

she had time to shower tonight and not last week. I don't know, but she still seemed slightly ripe to me this

evening. I don't think she wears deoderant.

jvkohl
01-18-2006, 06:47 AM
I wonder how much the

odor varies according to race? Some of my white and black GFs suffered from acute and repellent odors during their

menstrual period whereas my Asian GFs were neutral and unnoticable during this time.

Wonder no

more... Two books published prior to politically correct constrictions detail the differences (with references).



Coon, C.S. (1982) Racial Adaptations
Baker, J.R. (1974) Race.

Warning: conveying information from

these books (or perhaps merely checking them out from the library) may get you branded a "racist."

The

differences were mentioned briefly in my book "The Scent of Eros" and also

referenced.

JVK

jvkohl
01-18-2006, 07:34 AM
It's not only axillary odor that is influenced by the hormone cycle in women; it's any production

of all natural body odor. But we can't have men being subjected to testing the vaginal odors of women, can

we?
JVK


I received a reprint of the article this morning:

Havlicek et al wrote:


Axillary odour is probably not the only odour cue to ovulation. Another

potential source of relevant olfactory information could be changes in vaginal odour. It is known that the peak of

pleasantness corresponds with the late follicular (ovulatory) phase (Doty et al. 1975; Keith et al. 1975). However,

the pattern of changes in individual women was highly
heterogeneous. The hedonic changes in perception of the

vaginal odour can be due to the changes in relative concentration of short aliphatic acids (Michael et al.

1975).

Note that it is unlikely that any of the men on the Forum will be called upon for a

correlative work.

JVK