 To increase telomerase activity in people with stress-filled lives, Blackburn suggests moderate exercise, even 15 minutes a day, which has been proven to stimulate telomerase activity and replenish the telomere.Blackburn also states that unhappiness in lives also has an effect on the shortening of telomeres.In a study done on divorced couples, their telomere length was "significantly shorter" compared to couples in healthy relationships, and Blackburn states, "There's an obvious stressor... we are intensely social beings."