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Growing up poor has long been associated with reduced educational attainment and lower lifetime earnings. Some evidence also suggests a higher risk of depression, substance abuse and other diseases in adulthood. Even for those who manage to overcome humble beginnings, early-life poverty may leave a lasting mark, accelerating aging and increasing the risk of degenerative disease in adulthood. Today, more than one in f

Talking about our microbes — our symbionts — as neighbors. Maria seems a little incredulous.