Listen, Sexy
A woman's voice sounds sexier when she's at her peak of fertility, according to University at Albany researchers. When men listened to the voices of women at different points in their menstrual cycles, they rated the sound of women at peak fertility as most attractive. "Hormones throughout the menstrual cycle change the quality of a woman's voice, possibly by altering the pitch," says Nate Pipitone, PhD. Women are more receptive to sex at the same point in their cycles. If she seems irresistible, be condom-ready. Or it may be the perfect time for phone sex.

Aroma of amore
Women are sexually aroused by the scent of male sweat, say researchers at the University of California at Berkeley. When 48 female students watched an erotic video after sniffing androstadienone (a testosterone derivative in male sweat), they experienced a 200 per cent spike in arousal. Androstadienone also increased the levels of cortisol, a hormone that stimulates arousal, by almost 40 per cent.
The bikini effect
The Journal of Consumer Research reports that sexual urges make men crave quick rewards when they make decisions about money or food. Men who were given lingerie to fondle or shown videos of women running in bikinis tended to be content with a small immediate monetary reward instead of a bigger one that involved waiting (and made similar decisions for candy and soda). Sexual stimuli snap our minds to the present, making fast rewards more appealing.

Fact of life
77 - Percentage of Indian men who prefer having sex only on the bed
Source: India Today AC Nielsen ORG-Marg Sex Survey 2007
Signs: Understand the chemistry
Face Your Problem
Men struggle to remember what people look like, say Swedish researchers. When about 200 men and women were shown photos of 30 faces and then asked to identify them at a later date, the men made 25 per cent more mistakes than the women.

Cancer Scanners
Women are more vulnerable to radiation from CT scans. The Journal of the American Medical Association found women are five times more likely to experience cancer-related damage from a 64-slice CT scan.