By Lauren Young

Retirees' Second Acts

More than a quarter of workers age 50 and older switch jobs and employers. They also tend to take pay cuts while giving up all-important pension and health-care benefits. No wonder so many older workers are writing their own second acts. Sure it's a risky move, but the rewards—at least in terms of personal satisfaction—can be tremendous. Here is a look at 18 people who have launched new careers, often motivated by a passion, on their own terms.