Grain Brain

Résumé du livre

David Perlmutter, MD, is a neurologist, a Fellow of the American College of Nutrition, and a New York Times best-selling author. Perlmutter is a medical advisor to The Dr. Oz Show and Men’s Health magazine. His other books include Grain Brain and The Microbiome and the Brain.

Another crucial advice for maintaining good health involves simply engaging in physical activity, which can be equally beneficial for your brain as extensive hours of dedicated study. Physical exercise offers various positive impacts on brain function. Specifically, aerobic exercise activates genes related to longevity and influences the gene responsible for BDNF, a gene that plays a role in neurogenesis. Exercise significantly contributes to the exceptional power of our brains as it governs essential functions such as thinking and running. Anthropologists have explored correlations between brain size and physical endurance in different animal species, discovering that the most physically fit animals tend to have larger brain volumes. While it is common knowledge that exercise enhances blood flow to the brain, providing nutrients for cell growth and maintenance, there are other significant advantages as well. Exercise helps regulate inflammation, assists insulin in transporting sugar to cells, enhances memory, and elevates BDNF levels. In a study conducted in 2011, a group of researchers compared two groups of elderly individuals: one practicing a walking regimen and the other focusing on stretching exercises. After a year, the walkers displayed larger hippocampi and increased BDNF levels in their blood, while the stretchers experienced normal brain atrophy and had difficulty with cognitive assessments. You do not necessarily need to aim for intense physical challenges like climbing Mount Everest to enjoy the benefits of exercise; even a simple daily walk can make a difference. Consistent cardiovascular activities are enough to boost brain function and overall well-being.

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