Longevity — Health

Editorial package on the Health page of nationalgeographic.com

Stories: Scientists identify one fitness habit that may matter most for longevity — Should you go all in on walking—or switch up your workouts during the week? A new study compares the longevity benefits of various types of popular exercises.; Dan Buettner answers your questions on blue zones and the secret to longevity — In our new Ask an Expert Anything series, Dan Buettner weighs in on how to apply the blue zones principles to your own life—from your diet to your community.; These 5 simple tests can reveal how well your body is aging — Experts say gait speed, grip strength, balance, and endurance are some of the strongest predictors of long-term independence. Here’s how to check them yourself—and what the results mean.; What Germany can teach the world about healthy aging — Nursing homes and senior communities here have embraced simple, science-backed innovations to improve the lives of older people.; Can you grow new brain cells? The debate could reveal the secret of superagers. — A pair of new studies have provided fresh evidence in the long-running scientific debate—and the result could be game-changing for treating diseases like Alzheimer’s and dementia.; These surprising early symptoms may be linked to Alzheimer's — From financial woes to a declining sense of smell, issues that seem unrelated to memory can signal a dementia diagnosis in someone’s future.