Priyattam J. Shiromani
Tamas Horvath • Susan Redline
Eve Van Cauter
Editors

2012

Obesity levels worldwide have almost doubled since 1980. Currently, it is estimated that 1.46 billion adults are overweight (body mass index greater than 25 kg/m 2 ) and 502 million are clinically obese (BMI > 30 kg/m 2 ) [1]. These estimates include children where the percentage of children who are overweight or obese has more than doubled since 1974 [2].