An impulsive personality has long been associated with addiction to alcohol and drugs. Impulsive people are more likely to act rashly when they are feeling bad, for example, making them more likely to use drugs or alcohol when they experience a low.
Defensive linemen crouched on the football field is a familiar sight this time of year, their hulking bodies forming a barrier between the rival team’s quarterback and a touchdown. Serving as a human blockade means linemen often weigh in near 300 pounds, with a daily caloric intake that can reach 6000 calories.
Not all fat people are metabolically equal. And a simple number like the body mass index (or BMI) does not take that key fact into account.