HealthDay (5/2, Thompson) reported a study found that “people who increased their physical activity to meet recommended guidelines between ages 45 and 65 had less accumulation of amyloid beta, a toxic protein that forms plaques in the brains of” patients with Alzheimer’s. Researchers observed the link was dose-dependent, meaning that the “more people increased their activity, the greater the reduction in amyloid beta in their brains. Active people also showed less age-related shrinkage in brain regions associated with memory and Alzheimer’s.” Researchers concluded, “These findings reinforce the importance of promoting physical activity in middle age as a public health strategy for Alzheimer’s prevention.” The study was published in Alzheimer’s & Dementia.  (SOURCE: APA Headlines)