For years, medical experts have defined obesity primarily based on body mass index, which measures stored fat by calculating height and weight, to determine a person’s health risks. Major public ...

Corrected: A previous version of this story misstated Devin Kearn’s university affiliation. A recent change to the definition of dyslexia put forth by an international group of researchers and ...

Recently, an international commission proposed a revised definition of obesity that focuses on how excess body fat affects the body, and factors in waist circumference, rather than simply calculating ...