It's far from breaking news that stress is bad for you, but new research from the Harvard Business School and Stanford University has outed exactly how damaging it can be to your body and mind, and it's not pretty: Workplace stress is just as harmful to your health as secondhand smoke.

In my last month’s blog, I spoke about happiness and challenged you to take the “happiness challenge.” One of the biggest obstacles to happiness is stress and worry. We all have some stress and worry in our lives. Some stress and worry can be helpful in our daily functioning. However, when stress...