Today, there are about 900 million people above 60 years old. Thirty years later, that number will more than double to 2 billion. Our populations are aging faster than ever and that has prompted scientists and doctors to work on improving the wellbeing of seniors. We speak to a clinical gerontologist about her work on disease prevention during old age.

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Tags:  The Bigger Picture,  Health and Living,  aging,  chronic disease,  seniors,  cardiovascular disease,  diabetes,  mental health