The linked video discusses healthy living and long life, including examples of places where many people live to an older age. Population-level findings and lifestyle ideas should not be treated as a secret formula or guarantee for any one person.
Population findings are not a personal formula
Places with many older residents are an interesting subject for research. Interpreting the findings requires attention to how data were collected, how people were selected, their environment, and other factors. A percentage attributed to one behavior should not be treated as a fact without a source and a clear method of calculation.
What public health guidance supports
WHO guidance describes a balanced diet, physical activity, and not smoking as measures associated with reducing the risk of noncommunicable diseases and helping people maintain function. Outcomes vary by individual. The ability to carry out daily activities and having an environment that supports everyday life also contribute to well-being.
Use the ideas without copying a formula
Choose sustainable habits that fit your circumstances, such as walking or exercising at a level suited to your physical condition, eating a varied diet, and maintaining social connections. If you have a health condition or physical limitations, adapt your goals with your care team rather than following a routine designed for another population.