Cycling was the most popular activity among the Danes in the study, many of whom reported riding for four or more hours every week. Their pedaling was associated with a lengthier life span, adding an average of 3.7 years to riders’ lives, compared to sedentary Danes.
Running likewise was associated with an extra 3.2 years of life.
But these gains were notably less than for playing tennis, which was linked to 9.7 added years of life, or badminton, which was linked to an extra 6.2 years, or soccer, which added almost 5 years to players’ lives.
from the NY Times