Plenty of Americans will resolve to get in shape with the help of a personal trainer in 2013. But the personal training field is unregulated, and clients may not always know what they're getting.

As health care costs climb steadily for employers, wellness programs are moving to the factory floor.

Tess Vigeland and Kathy Kristof of Kiplinger's Personal Finance magazine and CBS MoneyWatch answer listeners' personal finance questions.

News that scientists have developed a drug that mimics the benefits of exercise — in mice, anyway — quickly rose to the top of numerous website…