According to one survey:
For men, longevity is boosted most by 29% in the case of aquatics, 25% for track and 24% for indoor sport as compared with the median age of death of a member of the general population. This translates to between 4.5 and 5.3 extra years of life.
Across all sports categories, women’s longevity is boosted by 22%, equating to 3.9 extra years of life.