The findings are consistent with previous research that uncovered similar links
between light to moderate
exercise and long life, as well as the greater mortality risk linked with
vigorous exercise.
New research shows that Davis is on to something: One study of more than 2,500 men and women
between the ages of 18 and 85 found that just two - and - a-half hours of moderate to
vigorous exercise each week can improve sleep quality by a whopping 65 percent.