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Get a good night’s sleep, avoid sugar, exercise - we hear this advice all the time, but how does following it affect how we age?Internist Dr. Stephen Schimpff, says adopting positive habits-- especially at a young age--can prevent the onset of chronic diseases. He points to regions around the globe with concentrations of people 100 years or older. These communities shun processed food, stay active, and treat elders with respect. It's all in Schimpff’s new book, “Longevity Decoded”.