https://www.cnn.com/2018/03/14/health/dementia-risk-fitness-study/index.html by Jacqueline Howard, CNN Your stamina — or the time it takes for you to reach peak exhaustion during exercise — can be tied to your dementia risk, and a new study reveals how. The study, published Wednesday in the medical journal Neurology, found that women with high cardiovascular fitness, or high stamina, had an 88% lower risk of dementia than women who were moderately fit. “I was not surprised that there was an association, but I was surprised…