Are you skinny -- and fat?

There are skinny folks out there who don't exercise and don't eat right. You might be one of them. Ah, the blessed souls who enjoy slim figures without skimping or sweating. Well, maybe they are not so blessed, says Prevention magazine.

In one Mayo Clinic study of 1,101 women (average age: 41), 54% turned up as "normal weight obese." This means despite a healthy weight on the scale, these gals were carrying around body fat of more than 30%. Translation: Nearly four times the risk of metabolic syndrome, double the risk of prediabetes, and a 20% jump in high blood pressure.

In light of this news, and regardless of how thin you might appear, you ought to have your body fat measured by a doctor or the experts at a local health club. If your number is high, I've got a prescription for your: Regular cardio, strength-training, and a healthy diet, all of which can help you lose fat and maintain lean muscle.