I came back to work when my children were two months old. At that early age, they seem to have little awareness of anybody but their Raggedy Ann dolls, so it wasn't a matter of them missing me. I was missing them.

My tides were fluctuating, too - back and forth, back and forth - sometimes so fast they seemed to be spinning. They call this 'rapid cycling.' It's a marvel that a person can appear to be standing still when the mood tides are sloshing back and forth, sometimes sweeping in both directions at once. They call that a 'mixed state.'

'Good Morning America' exploited Joan Lunden's pregnancy, but you won't see me bringing my babies on the air. The only reason I'm talking about the babies at all is that they've been with me on the show since I became pregnant. After a while, I had to acknowledge this pumpkin tummy.

I had had some months of depression. Not serious enough to keep me from work. So, I guess you'd call that a mild depression.

When I was diagnosed with bipolar disorder the year I turned 50, it was certainly a shock. But as a journalist, knowing a little bit about a lot of things, I didn't suffer the misconception that depression was all in my head or a mark of poor character. I knew it was a disease, and, like all diseases, was treatable.

This may sound funny, but as much as the 'Today' show matured me, it also was something of a cocoon. I'd been happy there. I never went into the boss's office and pounded my fist on the desk, saying, 'Give me more money! Give me a prime-time show!'

I'm not driven by killer ambition. I'm not a workaholic. I'm a good team player. I don't have to be captain, but I do want to play on a winning team.