Exercise

The obesity epidemic is global: 2.1 billion people, or about 29% of the world’s population, were either overweight or obese in 2013, and nearly two out of three of the obese live in developing countries, according to a study released Thursday. […]

Some people overcome the midday slump at work with caffeine. Shelly Fireman re-energizes by hopping on the elliptical machine in his office. Mr. Fireman, in his late 70s one of New York City’s most successful restaurateurs, puts in double workout sessions on most days. “I make time for it because I want to stay alive. [...]