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  • Shadow man violence

    Media Violence Leads to Real Violence

  • Chess king by king

    Intelligence – Are You Holding Back Your Brain?

  • Angry kid

    Childhood Aggression Predicts Health Care Use Later in Life

  • White fence

    The Brain’s Border Patrol – Blood Brain Barrier

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White fence

Neuroscience & Neurology

The Brain’s Border Patrol – Blood Brain Barrier

January 18, 2012 | By Emily Haines, MSc, PhD student | 2 Comments

The blood brain barrier (BBB) forms a tight security gateway between blood vessels and brain tissue. Blood flow throughout the brain is crucial to deliver the oxygen and nutrients required for the brain to function properly. Even though the brain comprises only about 2% of body mass, it is responsible for nearly a quarter of the body's oxygen consumption. Blood flow is so crucial to the brain that when blood flow stops, brain functions halt within seconds. At the same time the brain also requires a very specific environment in order to function properly. Miniscule changes in pH, chemical concentrations, and protein composition around brain cells can have drastic and detrimental effects to cellular signaling and thus, brain function. The BBB acts as the border control to the brain, selectively allowing the necessary molecules to pass through while denying entry to everything else flowing through the blood vessels.

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Chess king by king

Psychology & Psychiatry

Intelligence – Are You Holding Back Your Brain?

January 24, 2012 | By Radhika Takru, MA | 2 Comments

Is intelligence fluid or crystalline? Is it a function of nature or nurture? Are you born smart, or is the power of your brain under no one's control but your own?You might have cruised through classes at school, or you might have struggled and wondered how your peers managed to pass their classes so effortlessly. In the first case, perhaps you met your match at university when you found you were no longer at the top of the class. In the second, perhaps you had just spent your life assuming some people were born smarter than others. In both cases you are treating intelligence as if it were a static trait -- you're born with a fixed quantity of it, and that quantity never changes.

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DNA test tube

Health & Healthcare

Risks of Personalized Medicine

January 15, 2012 | By Jennifer Gibson, PharmD | 7 Comments

Anyone who has taken high school biology has probably heard one of the corniest biology jokes around: How do you tell a girl chromosome from a boy chromosome? Pull down its genes. While this has been a useful (if not really funny) mnemonic for teaching students about life science, now individuals are beginning to play genetic versions of I'll-show-you-mine-if-you-show-me-yours by actually examining their genes. Not much more than a decade has passed since the completion of the Human Genome Project, but, already, direct-to-consumer (DTC) genome mapping and genetic testing are available with little more than a cotton swab and an envelope between you and your DNA.

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      Shadow man violence

      BioPsychoSocial Health

      Media Violence Leads to Real Violence

      A few short decades ago, the most violent scenes we were exposed to in the media involved Wile E. Coyote and an anvil. The nightly news did not display graphic evidence of riots or murders or... Read More→

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      Complementary and Alternative Medicine

      Pain Is No Matter for the Meditative Mind

      Remove your opinion about that which appears to give you pain and you stand painless. — Marcus Aurelius Pain is inevitable. Suffering is optional. — Dalai Lama The insight of Marcus... Read More→

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      Drugs & Clinical Trials

      Salvia Divinorum – DEA Control over Magic in the Mint

      Salvia divinorum is a member of the mint family with known hallucinogenic properties which have been known for centuries. Historically it has been used in shaman rituals in the Oaxaca Mexico... Read More→

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      Law & Politics

      Politics of Persuasion, Persuasion in Healing

      If there is anything I know a lot about, it’s persuasion. I don’t mean to say that I am a genius sales person or politician, but I had a big lesson about psychotherapy some years ago. I edited... Read More→

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      Living with a Brain Disorder

      My Nephew and his Brain, Part 4 – Their Life Today

      Continued from Part 3. After the surgery we were hopeful, that with a few limitations on his left side, my nephew would have a fairly normal life. Unfortunately, this was not to be. The faulty... Read More→

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      History of Medicine

      Human Dissection, Part 2 – Murderers, Body Snatchers and Burkers

      The history of medical students using human cadavers for dissection is a long and choppy one (no pun intended). Before Christianity, mutilation and use of human corpses was widespread. It is... Read More→

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      Opinion

      Being a Mensan – a Gift or a Curse?

      What is the good of an intelligence when it reasons always the same way and always reaches the same conclusion? — from CHANGE, Cuba, 2007 When Argentinean novelist Ernesto Sabato (a reputable... Read More→

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      Site News

      Brain Blogger Finalist for Two 2010 Research Blogging Awards in Neuroscience and Psychology

      Out of over 400 nominations, Brain Blogger is a finalist for two Research Blogging Awards for 2010 in the categories Best Blog — Neuroscience and Best Blog — Psychology. The Awards... Read More→

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      Stigmatization

      Stigma Influences Seeking Mental Health Care

      Stigmatization of mental health disorders leads to a decreased quality of life, missed opportunities, and lost independence for the affected individual. A new study reports that stigmatization... Read More→

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