It's easier than you might think to add another seven years to your life.Researchers have found that adding a simple 25-minute walk to your daily routine could give you several more years of healthy living.

Researchers found that participants in their 50s and 60s who took a brisk daily walk that lasted for at least 25 minutes had half the risk of dying from a heart attack than their couch-potato peers. The study, conducted at Saarland University in Germany, evaluated the health of 69 healthy non-smokers, aged between 30 and 60, who were not regular exercisers before the study began.

Participants were asked to complete various types of daily exercise — from simple aerobics to high-intensity interval training to strength training over a six-month period. Meanwhile, researchers took blood samples that allowed them to measure the increase of telomerase activity and the decrease of senescence markers, two indicators of cellular aging found in the blood. Using these measurements, researchers found that daily aerobic exercise triggers the anti-aging process.

Researchers presented their findings at the European Society of Cardiology conference with the suggestion that people add regular exercise to their daily routine to add years to their lives. They also noted that it's never too late to start. A 70-year-old woman who has never exercised before can still gain tremendous mental and physical health benefits by adding a brisk daily walk to her routine.

Heart disease is the number one killer of men and women in the U.S. According to the Centers for Disease Control and Prevention, more than 600,000 Americans will lose their lives to the disease this year, but exercise could slash that figure in half, bringing more years to millions of Americans.

Do you have your sneakers laced yet?

The secret to adding 7 years to your life
Hint: Get ready to lace up your sneakers.