I had a teacher in college who used to ask, Who discovered America? He would offer some choices. They were Amerigo Vespucci, Christopher Columbus or the Nina, the Pinta and the Santa Maria. The answer he wanted was the three ships with which eventually someone would have discovered the New World and without which everyone would have remained in Spain. It is no different with the tragedy in Tucson. Hate speech and madness were part of the mix, but it was the gun and our insane gun laws that resulted in six deaths. Until we come to grips with that, as a nation, we remain armed and dangerous.

Gun statistics are nothing less than astonishing. According to the Brady Campaign, an advocacy group, "more Americans were killed with guns in the 18-year period between 1979 and 1997 (651,697) than were killed in battle in all wars since 1775 (650,858)." Even recognizing that some of those deaths were suicides or accidents, the gun is what did it. Had it not been handy, a death might have been avoided.

Little in life is easy or open-and-shut. There is probably no getting rid of all guns, there is no denying their appeal, and there is no use ignoring the Second Amendment. But amendments can be repealed and then reworded (long guns only?) and somehow made to conform to the 21st century. I have in the past admitted a sometime yen to have a handgun for protection - I have twice been burglarized, once while I was in the house - but my own moderate paranoia cannot make me duck the obvious. Six people are dead and 14 wounded in Arizona not just because a man went crazy or political rhetoric has gotten too raw, but because they were shot. It's the gun that did it.

Author: RICHARD COHEN - Source: washingtonpost.com

Go ahead: Laugh if you want (though you’ll benefit your brain more if you smile), but in my professional opinion, yawning is one of the best-kept secrets in neuroscience. Even my colleagues who are researching meditation, relaxation, and stress reduction at other universities have overlooked this powerful neural-enhancing tool. However, yawning has been used for many decades in voice therapy as an effective means for reducing performance anxiety and hypertension in the throat. 

Several recent brain-scan studies have shown that yawning evokes a unique neural activity in the areas of the brain that are directly involved in generating social awareness and creating feelings of empathy. One of those areas is the precuneus, a tiny structure hidden within the folds of the parietal lobe. According to researchers at the Institute of Neurology in London, the precuneus appears to play a central role in consciousness, self-reflection, and memory retrieval. The precuneus is also stimulated by yogic breathing, which helps explain why different forms of meditation contribute to an increased sense of self-awareness. It is also one of the areas hardest hit by age-related diseases and attention deficit problems, so it’s possible that deliberate yawning may actually strengthen this important part of the brain. 

For these reasons I believe that yawning should be integrated into exercise and stress reduction programs, cognitive and memory enhancement training, psychotherapy, and contemplative spiritual practice. And, because the precuneus has recently been associated with the mirror-neuron system in the brain (which allows us to resonate to the feelings and behaviors of others), yawning may even help us to enhance social awareness, compassion, and effective communication with others. 

Why am I so insistent? Because if I were to ask you to put this magazine down right now and yawn 10 times to experience this fabulous technique, you probably won’t do it. Even at seminars, after presenting the overwhelmingly positive evidence, when I ask people to yawn, half of the audience will hesitate. I have to coax them so they can feel the immediate relaxing effects. There’s an unexplained stigma in our society implying that it’s rude to yawn, and most of us were taught this when we were young. 

As a young medical student, I was once “caught” yawning and actually scolded by my professor. He said that it was inappropriate to appear tired in front of patients, even though I was actually standing in a hallway outside of the patient’s room. Indeed, yawning does increase when you’re tired, and it may be the brain’s way of gently telling you that a little rejuvenating sleep is needed. On the other hand, exposure to light will also make you yawn, suggesting that it is part of the process of waking up. 

But yawning doesn’t just relax you—it quickly brings you into a heightened state of cognitive awareness. Students yawn in class, not because the teacher is boring (although that will make you yawn as well, as you try to stay focused on the monotonous speech), but because it rids the brain of sleepiness, thus helping you stay focused on important concepts and ideas. It regulates consciousness and our sense of self, and helps us become more introspective and self-aware. Of course, if you happen to find yourself trapped in a room with a dull, boring, monotonous teacher, yawning will help keep you awake.

Yawning will relax you and bring you into a state of alertness faster than any other meditation technique I know of, and because it is neurologically contagious, it’s particularly easy to teach in a group setting. One of my former students used yawning to bring her argumentative board of directors back to order in less than 60 seconds. Why? Because it helps people synchronize their behavior with others. 

Yawning, as a mechanism for alertness, begins within the first 20 weeks after conception. It helps regulate the circadian rhythms of newborns, and this adds to the evidence that yawning is involved in the regulation of wakefulness and sleep. Since circadian rhythms become asynchronous when a person’s normal sleep cycle is disturbed, yawning should help the late-night partygoer reset the brain’s internal clock. Yawning may also ward off the effects of jet lag and ease the discomfort caused by high altitudes. 

So what is the underlying mechanism that makes yawning such an essential tool? Besides activating the precuneus, it regulates the temperature and metabolism of your brain. It takes a lot of neural energy to stay consciously alert, and as you work your way up the evolutionary ladder, brains become less energy efficient. Yawning probably evolved as a way to cool down the overly active mammalian brain, especially in the areas of the frontal lobe. Some have even argued that it is a primitive form of empathy. Most vertebrates yawn, but it is only contagious among humans, great apes, macaque monkeys, and chimpanzees. In fact, it’s so contagious for humans that even reading about it will cause a person to yawn. 

Dogs yawn before attacking, Olympic athletes yawn before performing, and fish yawn before they change activities. Evidence even exists that yawning helps individuals on military assignment perform their tasks with greater accuracy and ease. Indeed, yawning may be one of the most important mechanisms for regulating the survival-related behaviors in mammals. So if you want to maintain an optimally healthy brain, it is essential that you yawn. It is true that excessive yawning can be a sign that an underlying neurological disorder (such as migraine, multiple sclerosis, stroke, or drug reaction) is occurring. However, I and other researchers suspect that yawning may be the brain’s attempt to eliminate symptoms by readjusting neural functioning. 

Numerous neurochemicals are involved in the yawning experience, including dopamine, which activates oxytocin production in your hypothalamus and hippocampus, areas essential for memory recall, voluntary control, and temperature regulation. These neurotransmitters regulate pleasure, sensuality, and relationship bonding between individuals, so if you want to enhance your intimacy and stay together, then yawn together. Other neurochemicals and molecules involved with yawning include acetylcholine, nitric oxide, glutamate, GABA, serotonin, ACTH, MSH, sexual hormones, and opium derivate peptides. In fact, it’s hard to find another activity that positively influences so many functions of the brain. 

My advice is simple. Yawn as many times a day as possible: when you wake up, when you’re confronting a difficult problem at work, when you prepare to go to sleep, and whenever you feel anger, anxiety, or stress. Yawn before giving an important talk, yawn before you take a test, and yawn while you meditate or pray because it will intensify your spiritual experience. 

Conscious yawning takes a little practice and discipline to get over the unconscious social inhibitions, but people often come up with three other excuses not to yawn: “I don’t feel like it,” “I’m not tired,” and my favorite, “I can’t.” Of course you can. All you have to do to trigger a deep yawn is to fake it six or seven times. Try it right now, and you should discover by the fifth false yawn, a real one will begin to emerge. But don’t stop there, because by the tenth or twelfth yawn, you’ll feel the power of this seductive little trick. Your eyes may start watering and your nose may begin to run, but you’ll also feel utterly present, incredibly relaxed, and highly alert. Not bad for something that takes less than a minute to do. And if you find that you can’t stop yawning—I’ve seen some people yawn for thirty minutes—you’ll know that you’ve been depriving yourself of an important neurological treat. 

Andrew Newburg is director of Penn’s Center for Spirituality and the Mind. This essay is from the book: HOW GOD CHANGES YOUR BRAIN by Andrew Newberg, M.D. and Mark Robert Waldman. Copyright © 2009 by Andrew Newberg and Mark Robert Waldman. Published by arrangement with Ballantine books, an imprint of The Random House Publishing Group, a division of Random House, Inc.

Source: upenn.edu

This list is a follow up to Top 10 Common Faults in Human Thought. Thanks for everyone’s comments and feedback; you have inspired this second list! It is amazing that with all these biases, people are able to actually have a rational thought every now and then. There is no end to the mistakes we make when we process information, so here are 10 more common errors to be aware of.

The confirmation bias is the tendency to look for or interpret information in a way that confirms beliefs. Individuals reinforce their ideas and attitudes by selectively collecting evidence or retrieving biased memories. For example, I think that there are more emergency room admissions on nights where there is a full moon. I notice on the next full moon that there are 78 ER admissions, this confirms my belief and I fail to look at admission rates for the rest of the month. The obvious problem with this bias is that that it allows inaccurate information to be held as true. Going back to the above example, suppose that on average, daily ER admissions are 90. My interpretation that 78 are more than normal is wrong, yet I fail to notice, or even consider it. This error is very common, and it can have risky consequences when decisions are based on false information.

Illusion of Control is the tendency for individuals to believe they can control or at least influence outcomes that they clearly have no influence on. This bias can influence gambling behavior and belief in the paranormal. In studies conducted on psychokinesis, participants are asked to predict the results of a coin flip. With a two-sided fair coin, participants will be correct 50% of the time. However, people fail to realize that probability or pure luck is responsible, and instead see their correct answers as confirmation of their control over external events.

Interesting Fact: when playing craps in a casino, people will throw the dice hard when they need a high number and soft when they need a low number. In reality, the strength of the throw will not guarantee a certain outcome, but the gambler believes they can control the number they roll.

The Just-World Phenomenon is when witnesses of an injustice, in order to rationalize it, will search for things that the victim did to deserve it. This eases their anxiety and allows them to feel safe; if they avoid that behavior, injustice will not happen to them. This peace of mind comes at the expense of blaming the innocent victim. To illustrate this, a research study was done by L. Carli of Wellesley College. Participants were told two versions of a story about interactions between a man and a woman. In both versions, the couple’s interactions were exactly the same, at the very end, the stories differed; in one ending, the man raped the woman and in the other, he proposed marriage. In both groups, participants described the woman’s actions as inevitably leading up to the (different) results.

Interesting Fact: On the other end of the spectrum, The Mean World Theory is a phenomenon where, due to violent television and media, viewers perceive the world as more dangerous than it really is, prompting excessive fear and protective measures.

A Self-Serving Bias occurs when an individual attributes positive outcomes to internal factors and negative outcomes to external factors. A good example of this is grades, when I get a good grade on a test; I attribute it to my intelligence, or good study habits. When I get a bad grade, I attribute it to a bad professor, or poorly written exam. This is very common as people regularly take credit for successes but refuse to accept responsibility for failures.

Interesting Fact: when considering the outcomes of others, we attribute causes exactly the opposite as we do to ourselves. When we learn that the person who sits next to us failed the exam, we attribute it to an internal cause: that person is stupid or lazy. Likewise, if they aced the exam, they got lucky, or the professor likes them more. This is known as the Fundamental Attribution Error.

Cryptomnesia is a form of misattribution where a memory is mistaken for imagination. Also known as inadvertent plagiarism, this is actually a memory bias where a person (inaccurately) recalls producing an idea or thought. There are many proposed causes of Cryptomnesia, including cognitive impairment, and lack of memory reinforcement. However, it should be noted that there is no scientific proof to validate Cryptomnesia. The problem is that the testimony of the afflicted is not scientifically reliable; it is possible that the plagiarism was deliberate and the victim is a dirty thief.

Interesting Fact: False Memory Syndrome is a controversial condition where an individual’s identity and relationships are affected by false memories that are strongly believed to be true by the afflicted. Recovered Memory Therapies including hypnosis, probing questions and sedatives are often blamed for these false memories.

Source: listverse.com

"These were severely aged animals, but after a month of treatment they showed a substantial restoration, including the growth of new neurons in their brains," said DePinho.

Repeating the trick in humans will be more difficult. Mice make telomerase throughout their lives, but the enzyme is switched off in adult humans, an evolutionary compromise that stops cells growing out of control and turning into cancer. Raising levels of telomerase in people might slow the ageing process, but it makes the risk of cancer soar.

DePinho said the treatment might be safe in humans if it were given periodically and only to younger people who do not have tiny clumps of cancer cells already living, unnoticed, in their bodies.

David Kipling, who studies ageing at Cardiff University, said: "The goal for human tissue 'rejuvenation' would be to remove senescent cells, or else compensate for the deleterious effects they have on tissues and organs. Although this is a fascinating study, it must be remembered that mice are not little men, particularly with regard to their telomeres, and it remains unclear whether a similar telomerase reactivation in adult humans would lead to the removal of senescent cells."

Lynne Cox, a biochemist at Oxford University, said the study was "extremely important" and "provides proof of principle that short-term treatment to restore telomerase in adults already showing age-related tissue degeneration can rejuvenate aged tissues and restore physiological function."

DePinho said none of Harvard's mice developed cancer after the treatment. The team is now investigating whether it extends the lifespan of mice or enables them to live healthier lives into old age.

Tom Kirkwood, director of the Institute for Ageing and Health at Newcastle University, said: "The key question is what might this mean for human therapies against age-related diseases? While there is some evidence that telomere erosion contributes to age-associated human pathology, it is surely not the only, or even dominant, cause, as it appears to be in mice engineered to lack telomerase. Furthermore, there is the ever-present anxiety that telomerase reactivation is a hallmark of most human cancers."

A staggering 63 percent of Americans are overweight. The most common cause? We eat more food than we need—and we're all guilty of doing it: mindlessly munching on a bag of pretzels during a reality TV marathon or treating ourselves to a second helping when the first was plenty. But boredom and indulgence aside, why else are we reaching for a snack when we should feel full? Some of it can be blamed on habit, while other triggers have more to do with our body's hunger signals. Check out the list below to find out the most common overeating pitfalls and simple solutions for avoiding these traps.

1. You didn't get enough sleep last night. 
Lack of rest stimulates two faux hunger triggers: energy deficiency, to which our natural reaction is to nourish our bodies, and appetite hormone confusion. "When our bodies are drained, levels of leptin—a hormone produced by our fat cells that controls our appetite—decrease, while levels of gherlin—a hormone produced by our stomach that stimulates our appetite—increase," explains American Dietetic Association spokeswoman Karen Ansel, RD. That's two hormones working against you. "Getting eight hours of sleep a night is the easiest thing you can do to prevent overeating." If you do fall short on zzz's, be sure to load up on nourishing, naturally energizing foods—such as fresh fruit, complex carbohydrates and lean proteins—throughout the day to help your body feel satisfied.

2. You're taking medication that causes hunger as a side effect. 
If you felt ravenous the last time you were taking an antibiotic to tame an allergic reaction, joint inflammation, acne or a bad cold, the medicine may be to blame. "Medication that contains mild steroids, like prednisone, a corticosteroid, ramp up hunger big time," says Milton Stokes, RD, owner of One Source Nutrition, LLC. "If you've already eaten a normal-size meal, ignore the drug-inflated hunger," says Stokes. Instead, try an oral fix like chewing gum, sipping warm coffee or brushing your teeth, he suggests. If you're on long-term steroid therapy, consult a dietitian to devise an eating plan that will help you feel more satisfied throughout the treatment.

3. You're thirsty or dehydrated. 
The symptoms of dehydration (sleepiness, low energy) closely mimic those of being overly hungry, which may lead you to think you need food to increase your energy level, explains Sandon. When you're thirsty, your mouth becomes dry, a symptom that eating will temporarily relieve, notes Sandon. She suggests drinking a tall glass of water or cup of herbal tea before eating and waiting for your body's hunger signals to adjust (about 10 minutes). "Doing so could save hundreds of calories."

4. It's "mealtime." 
As creatures of habit, we tend to eat on autopilot. While some regularity is encouraged so that you don't become overly hungry, which could lead to bingeing, it's also important to listen to hunger signals, says Ansel. "Next time you sit down to eat, ask yourself: 'Am I really hungry?' If the answer is 'no,' either eat a smaller portion or put off the meal for an hour—though no longer than that," suggests Ansel. This also applies to situations you associate with eating, like flying. "We've been conditioned to associate an airplane ride with eating," Ansel says. The solution: "Pay attention to timing," recommends Lona Sandon, MEd, RD, assistant professor of nutrition at University of Texas Southwestern. "Know how long the flight is and plan satisfying meals around it." Also, take advantage of the free (hydrating) beverages, she adds, as the enclosed space leads to hunger-causing dehydration.

5. You just worked out.
We are conditioned to feed ourselves after exercising. And, after a particularly strenuous exercise session like a spinning class or interval-training workout, we tend to feel ravenous. But that doesn't mean your body needs extra calories. "It means your body needs a specific kind of nourishment," says Marissa Lippert, RD, a nutrition consultant and dietitian in New York City. Opt for roasted chicken or other lean meats (protein will replenish your muscles) and brown rice or other whole grains (complex carbohydrates take a while to break down) to help your body recover faster and fend off hunger longer.