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Monthly Archives: October 2008

Hold the Video Games

This study is clear indication that video games are not doing us any favors.

Ann Gen Psychiatry. 2006 Oct 24;5:16. A cross-sectional analysis of video games and attention deficit hyperactivity disorder symptoms in adolescents. Chan PA, Rabinowitz T.

Department of Internal Medicine, Rhode Island Hospital, Brown University, Providence, RI 02912, USA.

BACKGROUND: Excessive use of the Internet has been associated with attention deficit hyperactivity disorder (ADHD), but the relationship between video games and ADHD symptoms in adolescents is unknown.

METHOD: A survey of adolescents and parents (n = 72 adolescents, 72 parents) was performed assessing daily time spent on the Internet, television, console video games, and Internet video games, and their association with academic and social functioning. Subjects were high school students in the ninth and tenth grade. Students were administered a modified Young’s Internet Addiction Scale (YIAS) and asked questions about exercise, grades, work, and school detentions. Parents were asked to complete the Conners’ Parent Rating Scale (CPRS) and answer questions regarding medical/psychiatric conditions in their child.

RESULTS: There was a significant association between time spent playing games for more than one hour a day and YIAS (p < 0.001), overall grade point average (p < or = 0.019), and the “Inattention” and “ADHD” components of the CPRS (p < or = 0.001 and p < or = 0.020, respectively). No significant association was found between body mass index (BMI), exercise, number of detentions, or the “Oppositional” and “Hyperactivity” components of CPRS and video game use.

CONCLUSION: Adolescents who play more than one hour of console or Internet video games may have more or more intense symptoms of ADHD or inattention than those who do not. Given the possible negative effects these conditions may have on scholastic performance, the added consequences of more time spent on video games may also place these individuals at increased risk for problems in school.

Less is better.

Alcohol Is Not A Health Food

CNN today reported on a new study that confrims what I have seen on SPECT scans for a long time –alcohol is not a health food!  Any amount of alcohol can decrease brain size.  I like to say when it comes to the brain, size matters.

People who drink alcohol — even the moderate amounts that help prevent heart disease — have a smaller brain volume than those who do not, according to a study in the Archives of Neurology.

While a certain amount of brain shrinkage is normal with age, greater amounts in some parts of the brain have been linked to dementia. “Decline in brain volume — estimated at 2 percent per decade — is a natural part of aging,” says Carol Ann Paul, who conducted the study when she was at the Boston University School of Public Health. She had hoped to find that alcohol might protect against such brain shrinkage. “However, we did not find the protective effect,” says Paul, who is now an instructor in the neuroscience program at Wellesley College. “In fact, any level of alcohol consumption resulted in a decline in brain volume.” 

In the study, Paul and colleagues looked at 1,839 healthy people with an average age of about 61. The patients underwent magnetic resonance imaging (MRI) of the brain and reported how much they tippled.

Overall, the more alcohol consumed, the smaller the brain volume, with abstainers having a higher brain volume than former drinkers, light drinkers (one to seven drinks per week), moderate drinkers (eight to 14 drinks per week), and heavy drinkers (14 or more drinks per week). Men were more likely to be heavy drinkers than women. But the link between brain volume and alcohol wasn’t as strong in men. For men, only those who were heavy drinkers had a smaller brain volume than those who consumed little or no alcohol.

In women, even moderate drinkers had a smaller brain volume than abstainers or former drinkers.

It’s not clear why even modest amounts of alcohol may shrink the brain, although alcohol is “known to dehydrate tissues, and constant dehydration can have negative effects on any sensitive tissue,” says Paul. 

“We always knew that alcohol at higher dosages results in shrinking of the brain and cognitive deficit,” says Dr. Petros Levounis, M.D., director of the Addiction Institute of New York at St. Luke’s — Roosevelt Hospital Center, who was not involved in the study. “What is new with this article is that it shows brain shrinking at lower doses of alcohol.”

Less is better.

Large Review Finds St. John’s Wort As Effective As Standard Antidepressants

In an article by Stephen Daniells of NutraIngredients.com he reports that in an extensive review of the scientific literature (Cochrane Systematic Review) that St. John’s Wort was found to be as effective as standard antidepressants with significantly fewer side effects.  This is also my personal clinical experience.  But natural treatments are not always without side effects and need to be thoughtfully used.

Extracts of St. John’s wort are effective in reducing the symptoms of major depression, according to a new review in the prestigious Cochrane Systematic Review.

The review, by scientists from the Centre for Complementary Medicine at the Technical University of Munich and the University Medical Center Freiburg, also supports earlier research that showed the plant extract is effective against mild to moderate depressive disorders. “Overall, we found that the St. John’s wort extracts tested in the trials were superior to placebos and as effective as standard antidepressants, with fewer side effects,” said lead researcher, Klaus Linde. Extracts of the plant Hypericum perforatum, commonly known as St. John’s wort, have already been shown to help in patients with minor depression but in patients with more severe depression, the efficacy has been disputed.

The new review pulled together 29 trials involving 5,489 patients with symptoms of major depression. Eighteen trials included a placebo and 17 involved comparisons with synthetic standard antidepressants. All the trials used the Hamilton Rating Scale for Depression to assess the severity of depression. In the nine largest trials of the 18 placebo-controlled trials, the researchers report that hypericum extracts were 28 per cent more effective, while the response rate was 87 per cent higher in the patients receiving the St John’s wort extract in the nine smaller trials. When compared to the standard antidepressants, and selective serotonin reuptake inhibitors (SSRIs), the researchers found no difference in efficacy. However, the drop out rate by patients receiving St John’s wort was 76 per cent lower than amongst patients receiving tri- or tetracyclic antidepressants, and 47 per cent lower than amongst patients receiving SSRIs.

“The available evidence suggests that the hypericum extracts tested in the included trials a) are superior to placebo in patients with major depression; b) are similarly effective as standard antidepressants; c) and have fewer side effects than standard antidepressants,” wrote the researchers.

Muddying the waters Linde and his co-workers report that the overall picture is complicated by more favourable results being report in trials conducted in German speaking countries. The herbal has a long tradition of use in these countries, they said, and it is often prescribed by doctors. Despite the positive results, the researchers caution against generalisations about the plant’s efficacy. “Using a St. Johns wort extract might be justified, but products on the market vary considerably, so these results only apply to the preparations tested,” said Linde.

The little yellow flower and health claims Earlier this summer, UK botanicals manufacturer Bioforce was granted the right to make a claim that St John’s wort can help “low mood” and “mild anxiety”, after winning a Traditional Herbal Medicinal Products Directive (THMPD) registration. But the claim cannot claim to treat depression. The UK manufacturer first sought to make a mood-based claim for a St John’s Wort product in 1995, but was rebuffed by the UK Medicines and Healthcare products Regulatory Agency (MHRA) for failing to meet the body’s “standards of evidence”.

Source: Cochrane Systematic Review 

A Magnificent Mind Can Be Yours/Part 3 of 6

My new book Magnificent Mind At Any Age is coming out 12/2/09.  You can pre-order it on the website here.  Starting 11/29 my new PBS special on this book will start airing across North America.

Here is Part Three of Six of what you can expect in the book.  

Boost Blood Flow 

Blood is especially important to the brain.  Even though the brain is only 2% of the body’s weight, it uses 20% of the body’s blood flow and oxygen supply.  Blood flow to the brain is rarely thought about as important by the general public, unless a disaster strikes, such as a stroke or an aneurysm.  Yet, good blood flow is absolutely essential to the brain’s health.  This is one reason I favor brain SPECT as our primary imaging study.  It specifically looks at blood flow patterns in the brain. 

Blood brings oxygen, sugar, vitamins and other nutrients to the brain and takes away carbon dioxide and other toxic waste products.  Anything that limits blood flow prematurely ages all of your body’s organs.  Consider the skin of smokers.  Most people can tell if someone is a smoker by looking at his or her skin.  A smoker’s skin is more likely to be deeply wrinkled, and even perhaps tinged with yellow or grey color.  Why?  Nicotine in cigarettes is a powerful constrictor of blood flow to every organ in the body, including the skin and the brain, as such you look and think older than you are. 

Unless you actively do something to change it, blood flow throughout your body decreases over time, especially to the brain.  Blood vessels become droopy and blood pressure rises, limiting blood supply.  In order to stay young of heart and mind, it is essential to understand the factors that limit blood flow and eliminate them.  Improving blood flow is literally the fountain of youth.   

Whatever is good for your heart is good for your brain.  Since I wrote my book, Sex On The Brain, I also realized that whatever is good for your heart is good for your brain is also good for your genitals.  Blood flow to your genitals is essential for both men and women to have healthy, passionate, satisfying sex lives.  Did you know that 40% of 40 years olds have erectile (blood flow) dysfunction?  And, 70% of 70 year olds have erectile dysfunction, too?  No wonder commercials for Cialis, Levitra, and Viagra are everywhere.  The startling statistics for erectile dysfunction are an indication that heart and brain problems are also much more common than most people think. 

Here is a partial list of factors that limit or disrupt blood flow.

Stress – the overflow of the stress chemical adrenaline constricts blood flow to many areas of the body.

Caffeine – directly constricts blood flow to the brain, disrupts sleep and is involved in dehydration. Ø      Nicotine – constricts blood flow everywhere.

Dehydration – the brain is 80% water. Anything that dehydrates you makes it harder to think.  I once did a scan of a famous body builder.  His scan looked like he was a dug addict, but he vehemently denied it.  Then I learned that he significantly dehydrates himself before photo shoots to look leaner for the camera, which was the day after his first scan.  When he was adequately hydrated the following week, his brain looked much better.

Artery Disease/Heart disease – directly limits blood flow.

Diabetes – is a small blood vessel disease, limiting blood flow, making blood vessels brittle, and preventing healing of damaged tissue.

Environmental toxins – poison blood vessels.

Lack of sleep – people who get less than 6 hours a sleep at night have lower overall blood flow to the brain.

Lack of exercise – weakens the heart pump, plus blood vessels become droopy and less efficient.

Drug or alcohol abuse – directly toxic to the vascular system.  Drug or alcohol show a toxic Swiss cheese appearance on scans from the overall decreased blood flow. 

To increase healthy blood flow throughout your body and brain you need to get enough sleep, drink plenty water and avoid substances that dehydrate you, such as caffeine, stop any medications or bad habits like smoking that may be getting in the way and consider taking supplements such as fish oil, gingko and ginseng that boost blood flow.  

Probably the most important thing to do is to eliminate any toxins and exercise.

                                                                                                   

Unbelievable! Read the Labels

In this blog, I want to share a comment from Samantha.  It is unbelievable, but yet so totally believable.  You must read the labels of the foods you buy!

“I would really like Dr. Amen to see this comment so he can inform others.  I was just reviewing the Brain and Behavior Course and remembered that I just saw the Target brand vitamins for CHILDREN has aspartame in it.   I know well enough to look at every label before consuming something myself or allowing my children to eat it. There are thousands of other parents feeding their children aspartame with a vitamin!  I work with children and helped along so many families with your information.  Keep up the incredible work!”

Whenever I go to the store or fast food restaurants I see unbelievable combinations of toxins, dyes, sugars in the foods we are offered.  Chicken breast, for example, from McDonald’s has the following ingredients:  ”Chicken breast filets with rib meat, water, seasoning (salt, sugar, food starch-modified, maltodextrin, spices, dextrose, autolyzed yeast extract, hydrolyzed [corn gluten, soy, wheat gluten] proteins, garlic powder, paprika, chicken fat, chicken broth, natural flavors (plant and animal source), caramel color, polysorbate 80, xanthan gum, onion powder, extractives of paprika), modified potato starch, and sodium phosphates.  What is chicken breast doing with sugar and gluten?

Most popular chewing gum has aspartame.  The insanity continues to grow unless we demand healthy food.  You are what you eat.  Know what you are eating.