The secret to healthy aging may be hidden in your blood

People who live to age 100 and beyond often owe their exceptional longevity to a mix of protective genes and healthy habits. Researchers estimate that genetics account for as much as 50% of the ability to reach extreme old age, while lifestyle factors such as eating a plant forward diet, staying physically active through regular natural movement, and maintaining strong social relationships also play an important role. Although scientists have identified unique immune system traits in many centenarians, the metabolic changes associated with healthy aging have remained less clear.