BBC News - Survival of the fittest: exercise 'can fight ageing'
Researchers focused on telomeres, the protective caps on the chromosomes that keep a cell’s DNA stable but shorten with age.
They found telomeres shortened less quickly in key immune cells of athletes with a long history of endurance training.
In a separate study of young Swedish men, cardiovascular fitness has been linked to increased intelligence and higher educational achievement.
Source: BBC
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