Sobering news from a federally funded study of nearly 700 youths with Type 2 diabetes found that it's extremely hard to keep the disease under control. Even a common diabetes pill failed to keep blood sugar at safe levels in half of them.

Here are some facts about teens and diabetes:

- About 215,000 Americans under age 20 have diabetes. Type 1 diabetes occurs when the body can't make insulin. Type 2 is related to obesity and occurs when the body can't use insulin properly.

- About 3,600 youths are diagnosed with Type 2 diabetes every year. Minorities are disproportionately affected.

- Teens can lower their risk of Type 2 diabetes by maintaining a healthy weight, being more active and eating healthy foods.

- If diabetes is not controlled, it can lead to serious problems including vision loss, nerve damage, kidney failure, limb amputation - even heart attacks and strokes.

- A third of teens are obese or overweight, putting them at risk of Type 2.