A University of Western Australia study found people 50 years of age and older with memory loss experienced significant improvements in their memory by walking 150 minutes per week. Conducted over a period of 18 months, 170 people with memory problems, but not dementia, were split into two groups. One group continued their daily activities as normal and the second group participated in a home-based activity program, which included three 50 minute walking sessions or other moderate exercise activities per …