Friday, December 21, 2007

We use only 10% of our brains

The belief that we use only 10% of our brains has persisted for over a century, despite dramatic advances in neuroscience. In another extensive expert literature review, Barry Beyerstein provides a detailed account of the origins of this myth and the evidence disputing it.Some sources attribute this claim to Albert Einstein, but no such reference or statement by Einstein has ever been recorded.This myth arose as early as 1907, propagated by multiple sources advocating the power of self improvement and tapping into each person’s unrealised latent abilities.

Evidence from studies of brain damage, brain imaging, localisation of function, microstructural analysis, and metabolic studies show that people use much more than 10% of their brains.Studies of patients with brain injury suggest that damage to almost any area of the brain has specific and lasting effects on mental, vegetative, and behavioural capabilities.Numerous types of brain imaging studies show that no area of the brain is completely silent or inactive.The many functions of the brain are highly localised, with different tasks allocated to different anatomical regions. Detailed probing of the brain has failed to identify the "non-functioning" 90%.Even micro-level localisation, isolating the response of single neurones, reveals no gaps or inactive areas. Metabolic studies, tracking differential rates of cellular metabolism within the brain, reveal no dormant areas.

Full article here

Tuesday, December 18, 2007

My Tiny Jesus - For a tiny salvation


http://www.mytinyjesus.com/

Wednesday, December 12, 2007

Mood food - Porreiro pá

Mood Foods
Your brain depends on a variety of nutrients to keep itself balanced. Cheetos and beer are not on the list. The scoop on six snacks that will help kick your mind into gear.
http://www.menshealth.com/cda/article.do?site=MensHealth&channel=health&category=other.diseases.ailments&conitem=d64634402e012110VgnVCM20000012281eac____&cm_mmc=RSS-_-mhrsssex%20&%20relationships-_-NA-_-NA

. Your Mood: Anxious
You need to stay sharp through a grueling job interview.

Your Meal: Half a grilled-chicken wrap at lunch, hold the mayo

Here's Why: Eating between 4 and 5 ounces of protein helps your brain create dopamine and norepinephrine, neurochemicals that keep you alert, says Judith Wurtman, Ph.D., author of The Serotonin Power Diet.


. Your Mood: Stressed
You have to meet a deadline without being overwhelmed.

Your Meal: A handful of sesame seeds while you're working

Here's Why: Stress hormones can deplete your body's supply of magnesium, reducing your stress-coping abilities and increasing your risk of developing high blood pressure, says Elizabeth Somer, R.D., author of Food & Mood.


. Your Mood: Restless
You need some serious shut-eye before the big day.

Your Meal: Nonfat popcorn half an hour before you go to bed

Here's Why: The carbs will induce your body to create serotonin, a neurochemical that makes you feel relaxed. "Make sure it's fat-free, because fat will slow the process of boosting serotonin levels," says Somer.


. Your Mood: Depressed
Problems at home are doing you in.

Your Meal: Grilled salmon or sushi for dinner

Here's Why: A study in Finland found that people who eat more fish are 31 percent less likely to suffer from depression. And skip sweet, simple carbs­ -- the inevitable sugar crash can actually deepen depression.


. Your Mood: Insecure
Your confidence is waning as the night wears on.

Your Meal: A snack-size chocolate bar when she's in the bathroom

Here's Why: Chocolate contains a host of chemicals to brighten your mood, Somer says, including anadamine, which targets the same receptors as THC, and phenylethylamine, which produces a cozy, euphoric feeling.


. Your Mood: Flummoxed
You've forgotten your last two deadlines.

Your Meal: Pineapple chunks for a snack or a cup of berries in your oatmeal

Here's Why: Antioxidants from the most-colorful fruits and vegetables help pick off the free radicals that wear away at your memory. "Because your brain consumes so much oxygen, oxidants do heavy damage there," says Somer.