Walking briskly may lower risk of death in some adults: Study ABC News - Breaking News, Latest News and VideosYou may not need 10,000 steps to get health benefits from walking CNNHow Fast You Walk May Determine How Long You Live Nautilus | ScienceIs Your Step Count Too Low? Try Walking Faster Time MagazineWalking an extra 1,000 steps a day may help your heart, study finds The Washington Post