Dan Buettner, a National Geographic writer and researcher, traveled the world learning about what it is that allows people to live long, healthy lives. In his book The Blue Zones: 9 Lessons for Living Longer from the People Who've Lived the Longest, he distills nine main principles. (They are listed for everyday living activities, and I've added some examples in parentheses for the workplace). As you read them, consider with me ways to incorporate them into the workday.

1. Move naturally -such as walking and gardening, using fewer laborsaving devices. (At work, take the stairs, walk to a colleague instead of emailing, take a walk at lunch).

2. Find purpose -and pursue it with passion. (Ideally, work is a great place to express your values and purpose).

3. Slow down-Work less, rest, and take vacations. (All the research shows we need periods of recovery and rest to be productive over the long-term.)

4. Stop eating ... when you're 80 percent full. (Limit eating out, bring a healthy lunch and snack.).

5. Dine on plants-Eat more veggies and less meat and processed foods. (Advocate getting junk food out of the office. Nobody needs cookies and chocolate hanging out near the coffee maker.)

6. Drink red wine- Do it consistently but in moderation. (OK, I can't really advocate this one at work...)

7. Put loved ones first- Keep family a priority. (Work can become a 24/7 endeavor if we're not careful. Create boundaries, schedule family commitments on your calendar, have family dinners.)