Almost 6 million Americans have Alzheimer’s disease and other dementias. But a new study shows that adding exercise to your daily routine can cut your risk by up to one-third. Researchers at the George Washington School of Medicine followed almost 650,000 military veterans, splitting them into five groups based on how metabolically demanding their physical activity was each day. For example, activities like watching TV or sitting would measure 1 MET, or metabolic equivalence of task. Leisurely biking counted for 4 METs, and jumping rope was 10 METs. The researchers discovered the fittest group, which achieved the highest MET scores each day, were 33 percent less likely to develop Alzheimer’s disease and related disorders.
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