Average UK woman wears 515 chemicals a day!

The average British woman "hosts" 515 chemicals on her body every day, according to a new study.

The poll of 2,016 women by deodorant-maker Bionsen said most of the pollutants are self-inflicted by women who sprayed on deodorant, slapped on body moisturiser and applied lipstick each morning.

Today's average British woman uses body and facial moisturisers, perfumes, deodorants and various other make-up products which leave them unknowingly carrying hundreds of chemicals on their bodies throughout the day, Bionsen said.

Moisturiser can contain over 30 different chemicals and perfume up to 400, it added.

More than a third of the women who took part in the study were unaware of the key ingredients in their toiletries, with only nine percent aware of most of the ingredients in the cosmetics they put on each day.

More than 70 percent of the women polled said they were not concerned about the number of chemicals they put on their skin and only one in 10 opted for chemical-free toiletries when shopping.

"Women have never been more image-conscious and their beauty regimes have changed dramatically over the years, from a simple 'wash & go' attitude, to daily fake tan applications, regular manicures, false lashes and hair extensions," Bionsen's Charlotte Smith said in a statement.

"Lots of the high-tech, new generation cosmetics and beauty 'wonder' treatments naturally contain more chemicals to be able to achieve even better results, which, of course, means that women now carry more chemicals than ever before."

8 out of the 12 areas on the body highlighted by Bionsen as places where women used cosmetic products containing chemicals were on the face or head and included moisturisers, foundation, blush, eye make-up, hair spray and perfume head or face.

(Reporting by Paul Casciato; Editing by Steve Addison)

Scent of a woman: Men's testosterone responses to olfactory ovulation cues

Scent of a woman: Men's testosterone responses to olfactory ovulation cues

Women around the world spend billions of dollars each year on exotic smelling perfumes and lotions in the hopes of attracting a mate. However, according to a new study in Psychological Science, a journal of the Association for Psychological Science, going "au natural" may be the best way to capture a potential mate's attention.

Smells are known to be critical to animal mating habits: Animal studies have shown that male testosterone levels are influenced by odor signals emitted by females, particularly when they are ovulating (that is, when they are the most fertile). Psychological scientists Saul L. Miller and Jon K. Maner from Florida State University wanted to see if a similar response occurs in humans. In two studies, women wore tee shirts for 3 nights during various phases of their menstrual cycles. Male volunteers smelled one of the tee shirts that had been worn by a female participant. In addition, some of the male volunteers smelled control tee shirts that had not been worn by anyone. Saliva samples for testosterone analysis were collected before and after the men smelled the shirts.

Results revealed that men who smelled tee shirts of ovulating women subsequently had higher levels of testosterone than men who smelled tee shirts worn by non-ovulating women or men who smelled the control shirts. In addition, after smelling the shirts, the men rated the odors on pleasantness and rated the shirts worn by ovulating women as the most pleasant smelling.

The authors note that "the present research is the first to provide direct evidence that olfactory cues to female ovulation influence biological responses in men." In other words, this study suggests that testosterone levels may be responsive to smells indicating when a woman is fertile. The authors conclude that this biological response may promote mating-related behavior by males.