Study: How to Have a Lower Biological Age
New research finds that taking care of your heart health can help you be younger than your actual age. People who followed the American Heart Association’s Life’s Essential 8 had a biological age that, on average, was six years younger than their physical age. Doctors say this is definitely worth trying.
There’s been a focus over the last few years on not just trying to live longer, but aging in a healthy way. While you can’t change your physical age, new research suggests there are a few things you can do to slow your biological age—that is, the age of your cells.
The study, which will be presented at the American Heart Association Scientific Sessions 2023, analyzed data from more than 6,500 adults who participated in the 2015-2018 National Health and Nutrition Examination Survey (NHANES). For the study, researchers from Columbia University’s Mailman School of Public Health calculated participants’ phenotypic age (a measure of a slew of biological factors) as well as the increasing phenotypic age of the participants.
The researchers discovered that people who had good cardiovascular health had a negative phenotypic age acceleration—meaning, their biological health markers were younger than their physical age. At the same time, people with worse cardiovascular health were biologically older than what would be expected for their age.
An example: The average actual age of people with good cardiovascular health was 41, but their average biological age was 36. By comparison, the average actual age of people with poor cardiovascular health was 53, while their biological age was 57.
The researchers found that people who scored high in the American Heart Association’s Life’s Essential 8 were more likely to have a biological age that was, on average, six years younger than their actual age.
So, what is Life’s Essential 8 and what do doctors think about this? Here’s the deal.
What is Life’s Essential 8? There are a lot of factors that go into your biological age, including any underlying health conditions you have and your genetic makeup, says Cheng-Han Chen, M.D., board-certified interventional cardiologist and medical director of the Structural Heart Program at MemorialCare Saddleback Medical Center in Laguna Hills, Calif.
But the latest study specifically found that people who scored high in the AHA’s Life’s Essential 8 had the lowest biological ages. In case you’re not familiar with it, Life’s Essential 8 was released by the AHA in 2022, and built upon previous metrics called Life’s Simple 7, which was released in 2010.
Life’s Essential 8, per the AHA:
– Eat well: That means aiming for an overall healthy eating pattern that includes whole foods, lots of fruits and vegetables, lean protein, nuts, seeds, and cooking in non-tropical oils such as olive and canola.
– Be active: The AHA recommends that adults get 2.5 hours of moderate-intensity exercise, or 75 minutes of vigorous physical activity per week. (Kids should have 60 minutes a day, including play and structured activities.)
– Don’t use tobacco: The AHA recommends against using inhaled nicotine products, including traditional cigarettes, e-cigarettes, and vaping.
– Get plenty of sleep: That means aiming to get seven to nine hours of sleep a night. This promotes healing, improves brain function, and lowers your risk of chronic diseases, the AHA says.
– Manage your weight: The AHA recommends achieving and maintaining a “healthy weight” with an optimal BMI of 25.
– Control your cholesterol: High levels of LDL (“bad”) cholesterol can increase your risk of developing heart disease. The AHA recommends limiting sugary foods and drinks, red or processed meats, salty food, refined carbohydrates, and highly-processed foods, and talking to your doctor about what your cholesterol levels should be.
– Manage your blood sugar: The food you eat is turned into blood sugar (glucose) that your body uses for energy. Over time, high levels of blood sugar can damage your heart, kidneys, eyes, and nerves, the AHA says, making this important to stay on top of.
– Manage your blood pressure: Keeping your blood pressure within acceptable ranges can help you be healthier for longer, the AHA says.
Doctors applaud the study’s findings. “It’s so logical,” says Nicole Weinberg, M.D., a board-certified cardiologist at Providence Saint John’s Health Center in Santa Monica, Calif. “I see people who lead long, healthy lives who eat well and are active—it doesn’t need to be that hard. Just go for a walk after dinner, eat healthy, and have your blood pressure, cholesterol, and blood sugar checked.”
Dr. Weinberg points out that, while Life’s Essential 8 focuses on heart health, it’s also helpful for overall health. “These are also good for brain, digestive, and infection health,” she says.
Thomas Boyden, M.D., medical director for preventive cardiology and cardiac rehabilitation at Corewell Health, agrees. “These findings are consistent with the overwhelming body of clinical research showing that healthy lifestyles, including diet, physical activity, stress reduction, good sleep, and hygiene impact overall health and lead to fewer complications from chronic medical conditions,” he says.
Dr. Chen also says that it’s “not surprising” that people with good cardiovascular health would have a younger biological age.
But the study does have a limitation: It only measured certain biomarkers in participants at one point in time. “Therefore, changes in cardiovascular health were not measured, and their potential influence on phenotypic age over time could not be gauged,” says Pallavi Solanki, M.D.,director of the Advanced Heart Failure and Mechanical Circulatory Support Program at Rutgers New Jersey Medical School.
Still, experts say it’s likely that following these AHA guidelines could, in fact, keep you biologically young.
If you want to do a little better in sticking with these guidelines than you currently are, Dr. Solanki recommends starting slow. “One can start with baby steps,” he says. That may include going for daily walks, taking the stairs, trying to get more sleep, and eating a heart-healthy diet. “With these simple measures, one can lead a long, healthy life with an impact on longevity,” he says.