Longevity is the ability to reach old age or to be long-lasting. In general, longevity is used as a measure of the life expectancy of a person or a population. There are many factors that can influence longevity, such as genetic predisposition, lifestyle, environmental conditions, and access to medical care.

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Some people or groups of people have a higher longevity than others due to genetic, environmental, or other factors. There are also certain strategies and measures people can take to improve their longevity, such as eating a healthy diet, exercising regularly, and avoiding harmful behaviors such as smoking and excessive alcohol consumption.

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Interest in Longevity has increased in recent years as the population in many parts of the world is getting older and there is a growing demand for ways to extend old age and improve health in old age. There are also many scientific and medical studies looking at factors that influence longevity and ways to improve longevity.