Optimize Your Brain Power (Part 1)
September 12th, 2008Memory, mental processing speed and other cognitive functioning generally decline as people age. But this can be avoided. Studies show that, contrary to popular belief, neurons continue to grow throughout life. You can optimize your brain to perform better than ever, at any age. We all know we are supposed to exercise, eat our vegetables and get a good night’s sleep. Doing so not only strengthens your body, it also strengthens your mind.
Exercise Increases Memory
You can slow or even reverse normal (and disease induced) memory loss by exercising. As we age, nodes in the hippocampus are the first to deteriorate, which causes memory loss; however, aerobic exercise causes new hippocampus cells to grow. According to epidemiological and brain imaging research, people who exercise the most experience the biggest growth in brain cells and improved memory performance. So it’s important to walk 30 minutes a day several times a week or implement some other exercise routine. Also, women of reproductive age need an iron supplement or plenty of red meat, eggs, lentils, spinach & broccoli to replenish their blood supply.
Brain Foods – Bananas, Flaxseed Oil (Omega-3 fatty acids), Soybeans, Yogurt, Blueberries, Proteins, and Coffee
Brain cells must be replenished with nutrients. Japanese food, such as tofu, miso, soybeans, fish and seaweed are full of magnesium, B vitamins, tyrosine, L-glutamine, glutamine, tryptophan and potassium, which are essential to maintaining brain cells, the myelin sheath which improves neural firing rates and the neurotransmitters, which affects mood, thoughts and actions. Bananas, flaxseed oil (omega-3 fatty acids), soybeans and yogurt are also outstanding sources of these nutrients, so a breakfast of fruit, yogurt and granola with flaxseed will also do the trick.
Research shows that eating blueberries increases memory capacity by reversing age-related deficits. The flavonoids in blueberries (blue, red and purple berries are all great sources) are thought to cross the blood-brain barrier, regenerate brain cells and enhance neural connections. Flavonoids also reduce heart disease by lowering blood pressure and reducing blood clots.
Eating protein at every meal will help stabilize blood sugar levels and help prevent the brain fog that sometimes happens after high carbohydrate or high sugar meals. I provide my mock trial jurors a steady supply of nuts, cheese and iced tea to keep them alert during our research projects. I do not give our participants soda, which usually contains artificial sweeteners or corn syrup. Not only are these foods unhealthy, they are also “brain drainers,” according to Dr. Sears. Click here for Dr. Sears’ complete list of brain foods and brain drainers. Memory loss is linked to a diet high in saturated fat and cholesterol.
Coffee is my wonder-drug. Besides alertness, it increases happiness and even sociability. When you’re sleep deprived, coffee improves memory, reaction time and the ability to perform complex tasks. (But if you are rested, it is easier to focus deeply with less caffeine, in a comfortable environment with limited external stimuli. Caffeine will improve your attention on simple tasks, as will bright lights, a hard chair and fast music.) Studies show that coffee drinkers are more open-minded to others’ opinions and have reduced rates of type 2 diabetes and Parkinson’s disease. Coffee also contains antioxidants, enhances aerobic endurance and helps the body burn fat instead of carbs. And contrary to popular belief, coffee is not known to cause heart disease (including abnormal heart rhythms), hypertension nor cancer (incl. breast, kidney, liver & pancreatic. Click here for more information.)
Sleep On It
Sleep strengthens memories, improves motor skills and increases people’s ability to see the big picture (i.e., organize disparate details into a comprehensive framework that makes sense.) During sleep, memories are moved to areas of the brain that store long term memories, where they are retained for years, instead of weeks. During this process, memories are edited, with some details removed while others are enhanced. Daytime naps also enhance memory, especially if the material is tested before napping. It appears that straining to recall a memory, versus simple repetition, enhances memory. If you need to rapidly digest a lot of information, a nap will strengthen memories learned earlier in the day so that new information obtained afterwards will not interfere with that learning. Although scientists recommend that people get 7 to 8 hours of sleep a day, this is a generalization; some people require more and some less. If you wake up feeling tired, you need more sleep. It’s that simple.