Drop in glucose levels may weaken human brain potential to avoid sweets
Monday, September 19th, 2011Have you ever gotten the feeling after not eating for a while that a candy bar or donut would be the perfect treat to boost your energy levels, even though you're well aware that the simple carbohydrates are more likely to cause you to crash? Well, it may be your brain playing tricks on you.
In a brain imaging study, researchers at Yale University and the University of Southern California found that when people had low blood glucose levels, brain regions that regulate impulses were weakened. This was especially true in obese volunteers.
"Our prefrontal cortex is a sucker for glucose," said senior author Rajita Sinha.
When shown photos of foods, some of which were healthy while others were high in calories, the insula and striatum were stimulated, causing a desire to eat. Additionally, the prefrontal cortex, which controls impulses, was significanly weakened. These reactions were heightened when the volunteers were shown images of unhealthy food, and even more so in the obese.
"The key seems to be eating healthy foods that maintain glucose levels," Sinha said. "The brain needs its food."
Author and philosopher Ilchi Lee believes that in order for individuals to use their human brain potential, all areas of the body must be healthy. This may mean avoiding fatty or sugary foods in order to maintain brain wellness and practicing meditation to stay at a healthy weight. Though it may seem counterintuitive, the results of this study support the notion.
Lee has shown countless individuals how to unlock brain potential through practices that engage the body, mind and spirit.