HOME >> BIOLOGY >> NEWS
Male sweat boosts women's hormone levels

nges in women. More cognitive studies need to be done to understand how androstadienone affects female cognitive functions."

One implication of the finding is that there may be better ways to raise cortisol levels in patients with diseases such as Addison's disease, which is characterized by low cortisol. Instead of giving the hormone in pill form, which has side effects such as ulcers and weight gain, "a potential therapeutic mechanism whereby merely smelling synthesized or purified human chemosignals may be used to modify endocrine balance," the authors wrote.

Sweat has been the main focus of research on human pheromones, and in fact, male underarm sweat has been shown to improve women's moods and affect their secretion of luteinizing hormone, which is normally involved in stimulating ovulation. Other studies have shown that when female sweat is applied to the upper lip of other women, these women respond by shifting their menstrual cycles toward synchrony with the cycle of the woman from whom the sweat was obtained.

Androstadienone, a derivative of testosterone that is found in high concentration in male sweat, and in all other body secretions, has garnered the most attention. However, though its effect on a woman's mood, physiological arousal and brain activity suggests that the chemical is a possible pheromone-like signal in humans, its effect on hormone levels was unknown.

Wyart and Sobel set out to test whether androstadienone affects hormone levels as well, focusing on the hormone cortisol. Cortisol is secreted by the body in times of stress, priming the body for "fight or flight."

In two trials, a total of 48 undergraduate women at UC Berkeley were asked to take 20 sniffs from a bottle containing androstadienone, which smells vaguely musky. Over a period of two hours, the volunteers provided five saliva samples from which cortisol levels were determined.

Compared to their response when sniffing a c
'"/>

Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
6-Feb-2007


Page: 1 2 3

Related biology news :

1. Cod in a sweat: Some like it hot!
2. Sociality of sweat bees evolved simultaneously during climate change
3. Study demonstrates Cenestin reduces sleep disturbances/night sweats in post-menopausal women
4. Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
5. Genetic diversity in honeybee colonies boosts productivity
6. Ground gas gizmo boosts brownfield building
7. ResearchChannel boosts awareness of vital research with video production program
8. Aging boosts chances that a family line will be long-lived
9. Queen bee promiscuity boosts hive health
10. New technique boosts size of proteins that can be analyzed
11. Eating protein boosts hormone that staves off hunger

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Male sweat boosts women hormone levels

(Date:7/21/2014)... Growers of annual bedding plant seedlings or plugs ... a large stem diameter and high root dry ... during shipping and transplant. To achieve these desirable ... on supplemental lighting from high-pressure sodium lamps during ... diodes (LEDs) can give greenhouse growers other lighting ...
(Date:7/21/2014)... their cells are stressed when facing temperature extremes. Worse ... in the cell are slowed down more than others, ... of whack. Yet, those cells manage to keep their ... Rochester and the European Molecular Biology Laboratory have found ... of proteins is a key process in all cells, ...
(Date:7/20/2014)... A study of 473 sets of twins followed since ... of 24-month-old identical twins had language delay compared to ... the rate of late language emergence of single-born children. ... , The results of the study were published in ... Hearing Research . , University of Kansas Distinguished ...
Breaking Biology News(10 mins):LEDs shine in bedding plant production study 2When temperatures get cold, newly-discovered process helps fruit flies cope 2Large twin study suggests that language delay due more to nature than nurture 2Large twin study suggests that language delay due more to nature than nurture 3
(Date:7/22/2014)... Dr. Williams says, “Bush has joined ... that the greatest health care system in the world ... deadly while trying to serve the public. Unfortunately, Bush ... transform an enormous system that none of them can ... continuing series of Open Letters ( http://is.gd/wdU2CM ) provides ...
(Date:7/21/2014)... Applying just the right amount of tension to a ... metallic conductor to an insulator, according to Rice University ... a hard-to-make, one-dimensional chain of carbon atoms -- by ... in ways that engineers might find useful for mechanically ... Rice theoretical physicist Boris Yakobson and his colleagues appears ...
(Date:7/21/2014)... , July 21, 2014  Mike Patterson, CEO ... $1.6 million in Series Seed B funding to ... sensors for the life science, defense, intelligence, and ... Partners led the round and was joined by ... Said Patterson , "This round of funding ...
(Date:7/20/2014)... Richland, Wash. -- When nuclear fuel gets recycled, the ... uranium in rock contaminates basements with the related gas ... these gases, and research appearing July 20 in ... let the gases in but not out. , ... or hazardous radioactive elements from nuclear fuel or air ...
Breaking Biology Technology:Dr. Ira Williams Asks What’s Wrong With Jonathan Bush’s Book, Where Does It Hurt? 2Carbyne morphs when stretched 2Carbyne morphs when stretched 3Global Graphene Manufacturing Leader, Graphene Frontiers, Receives Series Seed B Funding To Assure Production Of The Next Generation Of Biological And Chemical Sensor Technology 2A noble gas cage 2A noble gas cage 3
Cached News: