If some days it's easier to reach your step goals than others, you may still be protecting yourself against cardiovascular disease and early death, according to a new study.

For women older than 60 in particular, the average daily steps across a week was more strongly associated with a lowered risk of cardiovascular disease and early death than the number of days in a week that step goals were reached, said lead study author Dr. Rikuta Hamaya, instructor in medicine at the Brigham Women's Hospital and Harvard Medical School.

Higher levels of physical activity have been associated with a longer, healthier lifespan. As a result, many people aim for higher step counts each day to protect against chronic disease.

But different people follow different patterns of activity. Some are movin

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