The N.F.L.’s Obesity Scourge

An insidious scourge that has nothing to do with head trauma is ravaging retired N.F.L. players. In the past few decades, the N.F.L.’s emphasis on the passing game and quarterback protection has led teams to stock their offensive and defensive lines with ever-larger men, many of them weighing well over 300 pounds. But their great…

Does Cannabis Use Cause Schizophrenia?

Nearly a century after the film “Reefer Madness” alarmed the nation, some policymakers and doctors are again becoming concerned about the dangers of marijuana, although the reefers are long gone. Experts now distinguish between the “new cannabis” — legal, highly potent, available in tabs, edibles and vapes — and the old version, a far milder…