'Shark Tank' star Daniel Lubetzky shares 4 ways founders can avoid burnout without sacrificing ambition

Daniel Lubetzky. Bloomberg/Getty Images Daniel Lubetzky said he struggled with burnout while building KIND Snacks into a huge business. He said the kind of nonstop grind he embraced early on left little room for recovery. The "Shark Tank" investor shares 4 ways founders can protect their ambition from burnout. Daniel Lubetzky built KIND Snacks into a multibillion-dollar business while running on four or five hours of sleep a night. The "Shark Tank" investor said the grind left him looking…