Moving your body may be the best way to protect your brain. Physical exercise can ease depression, slow age-related memory loss and prevent Parkinson-like symptoms, researchers reported at the Society for Neuroscience meeting underway in San Diego. The findings — some in animals, some in people — suggest that people may be making a mistake if they're relying primarily on crossword puzzles and brain-training games for mental wellness. "We definitely have more evidence for exercise," said Teresa Liu-Ambrose of the University of British Columbia. Liu-Ambrose moderated a panel of scientists who presented studies showing that physical activity offers a wide range of brain benefits.