All of the volunteers were generally healthy, however, without evidence at the time of disease or obesity.
Then last year, the researchers compared the names of the volunteers in both groups against death records. They also determined whether, based on average life expectancies, the volunteers were living longer, or had shortened life spans.
As it turned out, and as expected, joggers consistently tended to live longer than people who did not exercise.
But when the researchers closely parsed the data about how much and how intensely people jogged, some surprises emerged.
All of the volunteers were generally healthy, however, without evidence at the time of disease or obesity.
Then last year, the researchers compared the names of the volunteers in both groups against death records. They also determined whether, based on average life expectancies, the volunteers were living longer, or had shortened life spans.
As it turned out, and as expected, joggers consistently tended to live longer than people who did not exercise.
But when the researchers closely parsed the data about how much and how intensely people jogged, some surprises emerged.
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