Diet

I'm in Paris, which makes me happy for all kinds of obvious reasons. It's lovely to be in a place where you're surrounded by beauty.

While recovering from a suicidal depression, writer Ray Robertson decided to put together Why Not? Fifteen Reasons to Live, a book that addresses some of life's most fundamental questions.

How much attention do you pay to what you put in your body, and do you think it has any impact on your happiness?

To me, and many experts out there, food and mood are inextricably linked. But can you eat to make yourself happy? Yes, says Dr. Drew Ramsey, an assistant clinical professor of psychiatry at Columbia University College of Physicians & Surgeons and co-author of the new book 'The Happiness Diet'.

In the three months after her mom died Colette Baron-Reid gained 85 pounds. Here she shares her weight loss secrets and how her book is helping people who feel too much.