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We tend to associate high sugar diets with diabetes, obesity, heart disease and other health complications. Now, studies found that excess sugar consumption and the consequent insulin resistance raise another health concern: Alzheimer’s disease.
Whenever you eat something sweet or something high in carbohydrates, your body blood sugar level increases. As soon as the level of sugar in your blood rises, insulin kicks in and tries to regulate it. If you eat a lot of sugar or carbs at one time, a large amount of insulin goes to work. It’s a natural physiologic response to the consumption of sugar. When you eat too much sugar or carbs too frequently day in and day out, that natural response becomes a problem.
When an individual consumes a diet high in refined sugar and processed carbohydrates, they become insulin resistant. Having insulin resistance means that insulin was so overworked for so long that it simply doesn’t respond very well anymore. This results in the inability to clear sugar from the blood, leaving a person with chronic high levels of sugar floating around in the bloodstream. This can result in what’s known as type 2 diabetes.
The brain is separated from the body by what’s called the blood-brain barrier. Sugar can cross through this barrier without the assistance of insulin. This is not ideal because, while insulin is not required to enter the brain, it is required to metabolize sugar. Without insulin, sugar can’t transform into nutrients for the brain, preventing it from functioning optimally. Over time, this causes the brain to be incapable of normal functions such as memory recollection.
Brain cells are sensitive to deficits in insulin. An excess of sugar without ample insulin to handle it can lead to a decrease in memory functions. A decline in memory can be the first sign of Alzheimer’s, which is the destruction of the entire brain, not just the memory center. New research found that prior to the onset of Alzheimer’s disease, many patients showed decades of sugar abuse and degradation of insulin function, stemming back to individuals as young as 24 years old.
Education and awareness is power. Now that we’re aware of this connection, we can do something to offset the incidence of memory loss and Alzheimer’s disease. By taking the following dietary steps to heart and implementing them into your diet and the diets of your loved ones, we can slow down the degradation of brain cells.
Preventing Alzheimer’s disease may be easier than you think. Limiting sugar intake, maintaining a healthy, high-fiber diet and staying active can all help reduce insulin resistance that damages the brain and inhibits memory. By taking these small steps, you can begin to take control over your health.
Jenn Giles, R.D., C.S.S.D. is all about health and wellness. She has over 15 years’ experience, including a dual master’s degree in Nutrition and Exercise Physiology from Columbia University. She is a Registered Dietitian (RD) and a Board Certified Specialist in Sports Dietetics (CSSD). She supplements all of this with her spin instructor certification and USATriathlon Level I Coach Certification.
Jennifer is passionate about (actually, obsessed with) the sport of triathlon. She has been personally participating in triathlons since 2000 and running road races since 1992. She is a two-time Ironman finisher and has completed countless numerous marathons. She has been a member of Power Bar Team Elite since 2006 and competed as a member of the 2006 Aquaphor/Active.com Sponsored Athlete Team. She was ranked as USAT All American Honorable mention in 2006 and 2011. Jennifer does all of this along side of her husband, Patrick, who is an equally accomplished triathlete and runner. They try as hard as they can to do all of their training and racing together.
She will tell you, however, that her most important, most rewarding and most challenging job is as a mother of four. She knows first hand the challenges of maintaining optimal fitness, overall good health and achieving goals while raising a family - of which good nutrition is the cornerstone.
Most importantly, she knows how to motivate, inspire and challenge athletes based on their own abilities, strengths and everyday lifestyles. She believes there is an athlete in everyone - no matter what their abilities are – and if those abilities are manifold, then there is an even better athlete in there!