By Issam AHMED Agence France-Presse WASHINGTON, United States (AFP) — People classified as overweight though not obese are not at a higher risk of death, according to a new study Wednesday that underscores the limitations of the body mass index (BMI), long a standard medical metric. The findings, published in the journal PLOS ONE, come as populations in both rich and poor countries are becoming heavier. In the United States, more than 70 percent of […]