CNN —Doing more aerobic exercise in middle age and old age may reduce the risk of dementia, including Alzheimer’s disease, a new study found. Without effort, however, cardiorespiratory fitness declines as people age. “This study found a dose-dependent — meaning more was better — effect of exercise fitness on several critical types of cognitive performance,” Isaacson said. Biking, running, jogging, swimming, hiking and briskly walking can all improve cardiorespiratory fitness, experts say. The study showed that people with high cardiorespiratory fitness were more likely to take care of themselves, and therefore protect the heart-brain connection.

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Persons: ”, Weili Xu, ” Xu, Richard Isaacson, “ I’ve, ” Isaacson, Dr, Valentin Fuster, Fuster, ” Fuster, “ Organizations: CNN, Aging Research, Karolinska Institute, American Heart Association, British, of Sports Medicine, Mount, Hospital, Mount Sinai, Heart Federation, Cleveland Clinic Locations: Stockholm, Florida, Mount Sinai, Mount, New York City