My husband is the house optimist. If he had a personal credo, it would probably be "It'll be great. You'll see!"

True example: I once watched him paddling a metal canoe — while a thunderstorm boiled overhead — and saying, "It'll be great. You'll see!"

See also: 7 ways to live in the moment.

Jane Pauley — Phot by Andrew Eccles

It's said that the best predictor of the future is the past, and having never been struck by lightning before, my husband is pretty confident he won't be struck by lightning ever. I certainly hope he's right!

The way I see it, though, the odds of not being struck by lightning are greatly improved by avoiding metal canoes during thunderstorms. That doesn't make me a pessimist. A pessimist presumes the worst; I just like to be prepared for it. Maybe I'm a realist.

If I could choose, I would be an optimist, and not just because optimism is linked to good health. Studies show it can also lead to personal success. 

The midlife transition is hard enough, but it must be easier for people who don't fret over obstacles. The experts say that after a reasonable period of information-gathering about your next step in life, it's best to just do something, rather than wait for the perfect thing. And from what I've seen, I agree. Optimists are more likely to put their boats in the water and try. Trial and error is the best path to successful reinvention.