Topic of the Week

Topic of the Week

April 24th, 2017

Train the Brain

I have written before in this space regarding the positive relationship between exercise and improved brain function. Indeed, the research literature is clear that regular, moderate levels of exercise can do much to prevent a decline in brain function as we age and, moreover, can improve brain function at any age due to improved oxygen levels in the brain as a result of improved blood flow and vascularization. There is no other organ in the body that uses more oxygen than the brain and, of course, the brain is always "in use" even when we are physically inactive or asleep. We also know that a proper eating plan or "diet" is essential for healthy brain function. Among the many nutrients in our diet are the "electrolytes" which are essential minerals like magnesium, sodium, chloride and potassium. Additionally, B-complex vitamins as well as vitamin C and D are also crucial to the maintenance of brain activity. Of course, the best way to achieve the proper intake of these and other nutrients is through a varied and balanced eating plan.

A recent study, for example, showed the relationship between both the level of exercise and the level of salt in the diet with brain function. Even though proper levels of sodium and chloride (found abundantly in salt) were mentioned above as essential to good health, too much of these nutrients in the form of added dietary salt have now been shown to decrease brain function. In addition, the same study (involving over 1,200 men and women) showed a negative effect on the brain as a result of a lack of exercise.

With the Baby Boom generation now moving into the age range of the study referenced above, it is clear that the contribution of BOTH regular physical activity AND lower dietary salt levels is the answer to improved cognitive performance as we age. And it should be mentioned that nearly five million older Americans already suffer from some form of dementia. What are the suggestion for life style improvements for reducing the chances for cognitive decline? In a nut shell, it consists of : 1) a diet that is higher and fresh foods and less processed foods and, 2) including some form of low to moderately brisk exercise for 30 minutes or more at least 3 to 5 times per week. And it's easier than you think. So get up and get moving. And enough with the salt already! Keep your salt intake below 2,000 milligrams or less per day.

I'm Dr Paul Kennedy and that's the "Be Fit, Stay Fit" Topic of the Week. Good luck with YOUR program. I KNOW you can do it!