Increasing your physical activity levels could extend your life by several years, a new study has found. skynesher/E+/Getty ImagesMany studies have examined the connections between physical activity and longevity. The activity levels in that study were measured with accelerometers — wearable activity-tracking devices. Total activity levels in the lowest quartile were equivalent to walking for 49 minutes at roughly 3 miles (4.8 kilometers) per hour daily. Total activity levels in the second-, third- and fourth-highest quartiles were equivalent to 78, 105 and 160 minutes, respectively.

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Persons: “, ”, Lennert Veerman, Veerman, ” Veerman, Andrew Freeman, wasn’t, Freeman, hasn’t, Peter Katzmarzyk, Katzmarzyk wasn’t, ” Katzmarzyk Organizations: CNN’s, CNN, British, of Sports Medicine, School of Medicine, Dentistry, Griffith University, National Health, National Center for Health Statistics, Jewish Health, Louisiana State, Pennington Biomedical Research, World Health Organization Locations: USA, Australia, Denver, United States, Europe