By analyzing millions of DNA variations in the human genome, researchers have developed a “polygenic score” for obesity, a quantitative tool that predicts an individual’s inherited risk for becoming overweight. The researchers found that a genetic predisposition to obesity begins to appear in early childhood and is often clearly evident by early adulthood — suggesting an opportunity for early intervention.

Link to full Broad Institute release on study led by Broad/MGH investigators Amit Khera and Sekar Kathiresan.