What Do Scientists Have to Say About Sex?

Photo: ThinkstockPhoto: ThinkstockWhat's the latest science on sex? Here are four expert findings that may surprise you.
1. The scent of a woman's tears decreases sexual arousal in men, according to research from the Weizmann Institute of Science in Israel.

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2. A study at the University of Toronto has revealed that male rats raised with more sisters than brothers are less appealing to potential female mates.

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3. Based on the thorough scientific review of natural aphrodisiacs to date, conducted at the University of Guelph in Ontario, ginseng root boosts arousal and sexual satisfaction, and chocolate increases desire.

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4. A recent study found that a man is more than twice as likely to stay with an unfaithful girlfriend if she cheats on him with a woman than with a man, whereas women are more likely to break up with a boyfriend over a homosexual affair than a heterosexual one.

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