Taking regular timeouts during a workday and keeping work hours to fewer than 50 hours a week are good ways to help control stress, says Dr. David Posen, author of "Is Work Killing You? A Doctor’s Prescription for Treating Workplace Stress." "Another pretty easy fix: drink less caffeine. Energy drinks, coffee -- these stimulate a stress reaction and block the natural relaxants in the brain. I call coffee 'stress in a cup,'" he says.