Ever wondered why some people live well past 100 with their minds sharp and bodies still moving? While external factors like your lifestyle choices, diet, and exercise are important for a long life, science also shows that your genetic makeup may also play an important role for how long you live.Thomas Perls, who is a professor of geriatrics at the Boston University School of Medicine and direct of the New England Centenarian Study (NECS) explains that longevity can, in fact, be inherited. This is especially the case when we talk about living past 100 years old.What Makes One A Centenarian?In the United States, around 1 in every 5,000 people is a centenarian. This means anyone who lives at least 100 years of age. Among them, a striking number are women, making them to be 85% of the total centenarian population. What sets these people apart is not their lifestyle but something beyond the external factors.As per Perls, centenarians tend to age more slowly and push back age-related diseases like heart conditions, diabetes, or diseases like heart conditions, diabetes, or dementia until their 90s or beyond. This slow aging process is a key to their biological trait among those who reach extremely old age.Is There A Genetic Link?Getting to your 90s, Perls says, is roughly 30 percent due to genetics and 70 percent due to lifestyle. But if you’re aiming for 110—the elite club of supercentenarians—that flips: genetics likely accounts for up to 70 percent of your chances.So, yes, picking the right parents (or grandparents) does matter. NECS has shown that centenarians often come from families where siblings and even parents lived exceptionally long lives. These families seem to carry genetic variations that protect them from aging-related diseases, allowing their bodies to function well even in old age.One example is Celia, a 102-year-old NECS participant who still played complex Chopin pieces on the piano at public events. She wasn't an exception—many centenarians in the study live independently well into their late 90s or early 100s.But, Are Genes All?While you cannot change your DNA, but you can adopt habits that can increase your odds or living a healthier and a longer life. Perls recommends adding these to your routine:Manage stress: Chronic stress accelerates aging. Finding healthy ways to cope—whether through meditation, community, or hobbies—can slow that process.Eat smart: A plant-heavy diet with limited meat (ideally only once a week) helps maintain a healthy weight and reduces the risk of chronic illnesses.Don’t smoke: Smoking is still one of the leading preventable causes of early death.Exercise regularly: A mix of aerobic and strength training exercises helps maintain muscle, which is essential as you age.The Older The Better Or The Older The Sicker?While the common belief is that the older you get, the sicker you become, however, many centenarians reach old age mostly have lived a healthy lives. This is in contrast to people who develop chronic illness in their 60s or 70s. While centenarians often reach their 90s without a major health condition and experience only a short period of illness before their deaths.This is why the concept of NECS is so valuable. This was funded by the National Institute on Aging, the William M. Wood Foundation, and the Martin and Paulette Samowitz Family Foundation. The study has tracked more than 2,000 centenarians, identifying not only genetic patterns but lifestyle commonalities.