“Cardiovascular disease remains the number one cause of death in America,” says Dan G. Tripps, PhD, the chief operating officer and director of exercise science for Speck Health, a lifestyle medicine practice in Seattle. “Associated with physical inactivity, high cholesterol, high blood pressure, and smoking, cardiovascular disease accounts for approximately a quarter of all U.S. deaths. (3)
A study conducted with 17,000 Harvard graduates showed that students who walked for at least 30 minutes every day lived longer than those who were sedentary (17). Walking may or may not activate the telomerase enzyme, which is responsible for maintaining DNA integrity, an important factor in aging, but it helps prevent many age-related problems (18).
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