The Brain in Love: 12 Lessons to Enhance Your Love Life
no mistake that women spend more time caring for their physical appearance. How they look has much more impact on a man’s brain than the other way around.
    Men tend to be attracted to symmetrical, fertile, healthy, younger-looking women. A man’s genetic brain is looking at a woman and deciding whether or not he wants his children to carry her genes. Unconsciously we look for signs of health, such as clear skin and bright eyes. A number of scientists believe that body symmetry also plays a critical role in our view of beauty. The theory behind this notion is that asymmetrical features give clues tounderlying health problems, thus yielding more troubled offspring. In a study at the University of New Mexico, college males found symmetrical female faces more attractive than asymmetrical faces. In addition, women who were blessed with symmetry had a history of more sexual partners and tended to lose their virginity at an earlier age.
    There is now scientific proof for something people have long suspected—beautiful women make men stupid. Canadian researchers showed men pictures of conventionally pretty or not-so-pretty women. The men rolled dice—and were told they could either receive $15 the following day or $75 after waiting a few days. The men who saw the pictures of the beautiful women were more likely to take the $15—proving, researchers say, that men stop thinking about long-term consequences once love chemicals kick in. By the way, the same test was done on women—and attractiveness had no effect on their thinking processes. It seems as though beautiful women cause a man’s limbic system to fire up (emotional charge) while his prefrontal cortex (PFC) heads south, leaving the judgment area of the brain vacant. Las Vegas knows this principle very well. Casinos have beautiful waitresses dressed in low-cut, short dresses serving free alcohol—both lower PFC activity. No wonder the house has the edge.
    A woman’s brain is much less interested in how a man looks than in how he thinks and acts. Women often look to a man’s ability to care for her and her subsequent offspring. The trappings of a successful man, in whatever society, are more important than just his physical appearance. As always, beauty is in the eye of the beholder.
    The feelings of attraction, desire, arousal, and orgasm are fueled by a complicated interplay of chemicals, hormones, and other substances that cause the familiar and intriguing sensation of being “turned on.” Testosterone and estrogen were first identified in the 1920s as playing a role in sexual attraction. Since that time, there has been quite an evolution in the understanding of the chemistry involved with feelings of lust, from the controversial work of AlfredKinsey in the 1940s, to the first published studies on human sexuality and the stages of sexual response in the 60s, to the present, when substances like Viagra (a medication that increases blood flow to the genital areas to aid with arousal) and AndroGel (a testosterone gel applied to the skin for those with low levels of testosterone) are readily used and heavily marketed.
    A hormone is a chemical produced by one organ (endocrine gland) that has a specific effect on the activities of other organs in the body. The major sex hormones can be classified as androgens or estrogens. Both classes of hormones are present in males and females alike, but in vastly different amounts. Most men produce 6 to 8 mg of testosterone (an androgen) per day, compared to most women who produce 0.5 mg daily. Estrogens are also present in both sexes, but in larger amounts for women.
    Androgens/Testosterone
    Androgens, of which testosterone is the primary one, are sex hormones produced primarily by a male’s testicles, but they are also produced in small amounts by the female’s ovaries and the adrenal glands. Androgens help trigger the development of the testicles and penis in the male fetus. They jump-start the process of puberty and influence

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