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  • 8/13/2019 Surprising Differences Between the Male and Female Brain

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    Liver Cancer

    Health Topics

    Its not as simple as Mars vs. Venus, but scientists have identified intriguing

    differences in how men and women think that influence emotions, memory,

    business success, and even longevity.

    In thelargest brain imaging studyever conducted to compare male and female

    brains,Daniel Amen, MD,and other researchers analyzed imaging scans of

    26,000 people. They discovered that women showed increased blood flow in 112

    of the 128 brain regions they studied, indicating that on average, womens brains

    are much more active than mens.

    The most striking difference between the sexes was that women have a much

    higher level of activity in the prefrontal cortex, an area thats sometimes called

    the brains CEO because it governs planning, organization, impulse control, and

    learning from mistakes.

    In the soon-to-be published study, mens brains showed greater activity in

    regions associated with visual perception, tracking objects through space, and

    form recognition. However, these gender differences dont mean that one sexhas a mental edge over the otherjust that their brains are wired differently.

    Even when men and women succeed at the same task, they tend to call on

    different strengths and areas of the brain to achieve this result, says Dr. Amen,

    author of Unleash the Power of the Female Brain: Supercharging Yours for

    Better Health, Energy, Mood, Focus, and Sex (Harmony, 2013).

    Heres a closer look at some gender differences Dr. Amen and other researchers

    have identifiedand how we can use them to our advantage.

    Men Have Bigger Brains, But It Doesnt Make Them

    Smarter

    On average, mens brains are 8 to 10 percent bigger than womens brains. While

    http://health.yahoo.net/channel/liver-cancer.htmlhttp://health.yahoo.net/channel/liver-cancer.htmlhttp://health.yahoo.net/directory/health-channelshttp://on.aol.com/video/male-brain-vs--female-brain-517378746http://on.aol.com/video/male-brain-vs--female-brain-517378746http://on.aol.com/video/male-brain-vs--female-brain-517378746http://www.amenclinics.com/dr-amen/about-dr-amenhttp://www.amenclinics.com/dr-amen/about-dr-amenhttp://www.amenclinics.com/dr-amen/about-dr-amenhttp://www.amenclinics.com/dr-amen/about-dr-amenhttp://on.aol.com/video/male-brain-vs--female-brain-517378746http://health.yahoo.net/directory/health-channelshttp://health.yahoo.net/channel/liver-cancer.html

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    that may not seem surprising, given that mens bodies tend to be larger overall,

    even after correcting for body weight, its been estimated that men have about 4

    percent more neurons than women do.

    But before men jump on these findings as proof of brain superiority, scientists

    point out that these size differences arent distributed uniformly in all brain

    regions. Ina study using MRI scans,Dr. Jill Goldstein at Harvard Medical School

    found that compared to men, women have larger volume in both the frontal

    cortex (the inner CEO) and the limbic cortex, involved in emotional responses.

    This may explain why women tend to be less impulsive and more concerned

    with emotions than men are, says Dr. Amen, who theorizes that a bigger and

    more active frontal cortex suggests that women are wired for leadershipand

    may actually be better bosses than men.

    Consider the intriguing result of a recent study in which teams of men and

    women were assigned tasks that involved brainstorming, decision-making, and

    solving visual puzzles. Teams were given collective IQ scores based on their

    performance.

    Conventional wisdom would infer the team made up of people with the highestindividual IQ scores (thus the highest total IQ) should emerge victorious.

    However, the collective IQ scores were based on how they completed the

    assigned tasks as a team. And the teams with the highest collective IQs were

    those with more women,Harvard Business Reviewreports.

    The Most Surprising Facts About Testosterone

    Women Have Better Memories, Worse Sense of

    Direction

    Dr. Amens research shows that women have greater activity in the brains

    hippocampus. Guys, if you wonder why your wife or girlfriend never forgets

    anything, heres your answer: The hippocampus is the part of the brain that helps

    store memories.

    http://www.ncbi.nlm.nih.gov/pubmed/11375910http://www.ncbi.nlm.nih.gov/pubmed/11375910http://www.ncbi.nlm.nih.gov/pubmed/11375910http://hbr.org/2011/06/defend-your-research-what-makes-a-team-smarter-more-women/http://hbr.org/2011/06/defend-your-research-what-makes-a-team-smarter-more-women/http://hbr.org/2011/06/defend-your-research-what-makes-a-team-smarter-more-women/http://www.healthline.com/health-slideshow/most-surprising-testosterone-facts?utm_medium=yahhphttp://www.healthline.com/health-slideshow/most-surprising-testosterone-facts?utm_medium=yahhphttp://www.healthline.com/health-slideshow/most-surprising-testosterone-facts?utm_medium=yahhphttp://hbr.org/2011/06/defend-your-research-what-makes-a-team-smarter-more-women/http://www.ncbi.nlm.nih.gov/pubmed/11375910

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    In a 2008 study,Swedish psychologists found significant sex differences in

    several types of memory, favoring women in all almost all of the areas studied.

    Specifically, women excelled at recalling words, pictures, objects, and everyday

    events. They also outperformed men on such tasks as recalling the location of

    car keys or remembering faces (particularly those of other women).

    However, the psychologists also found that men have the edge in a type of

    memory called visuospatial processing. For example, the study results suggested

    that a man would be more likely to remember how to find his way out of the

    woods.

    Theres quite a bit of scientific evidence that men have a keener sense ofdirection than women do, adds Dr. Amen. Overall, men are better at getting from

    point A to point B, but are also less likely to realize it if they take the wrong turn.

    Thats why men are famously reluctant to ask for directions: They dont realize

    theyre lost.

    Warning Signs of Alzheimer's Disease

    Women Live Longer, But On Average Men Are Happier

    Studies suggest that women have greater self-control and levels of what Dr.

    Amen terms appropriate worry. For example, women tend to take better care of

    their health, visit the doctor more often, and behave less recklessly.

    Women also have lower rates of substance abuse, anti-social personality

    disorder, and ADHD. And theyre 14 times less likely to go to jailand even get

    fewer traffic tickets than men do.

    These points are actually quite fascinating, says Dr. Amen, because

    appropriate worry about negative consequences could be a key factor in why

    women outlive men. In one large study, researchers found that those with a

    dont worry, be happy attitudei.e. young men with motorcyclesdied earlier

    from fatal accidents and preventable illness.

    http://www.sciencedaily.com/releases/2008/02/080220104244.htmhttp://www.sciencedaily.com/releases/2008/02/080220104244.htmhttp://www.healthline.com/health-slideshow/alzheimers-symptoms?utm_medium=yahhphttp://www.healthline.com/health-slideshow/alzheimers-symptoms?utm_medium=yahhphttp://www.healthline.com/health-slideshow/alzheimers-symptoms?utm_medium=yahhphttp://www.sciencedaily.com/releases/2008/02/080220104244.htm

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    However, the dark side of womens higher level of worry is that they are more

    prone to anxiety disorders and depression, which strikes women at nearly double

    the rate it does men,according to the Mayo Clinic.At some point in life, about 1

    in 5 women develops clinical depression.

    One reason why women may be more vulnerable is that mens brains, onaverage, produce 52 percent more serotonin, according to a recent study byUniversity of Montreal researchers. This feel-good brain chemical has beendubbed the happy hormone.

    http://www.mayoclinic.com/health/depression/MH00035http://www.mayoclinic.com/health/depression/MH00035http://www.mayoclinic.com/health/depression/MH00035http://www.mayoclinic.com/health/depression/MH00035

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