According to WebMD more Americans have found a means of securing affordable health insurance in the last year. The bad news? That doesn't mean their health is protected.

A total of 45.7 million Americans had no health insurance in 2007, which is 1.3 million fewer uninsured Americans than in 2006. The sources of the boost in coverage are subsidized and more affordable health insurance plans, including government-funded insurance programs like Medicare and SCHIP.

But at the same time, 25 million Americans are underinsured, up from 16 million two years ago. So while people are finding more affordable health insurance, there aren't always covered when they get sick or injured.

On the one hand, those with coverage are more likely to get regular checkups, which keeps them healthy and means they're less likely to incur medical debt. However, at the same time it's important that people are covered in the event that they need their insurance, otherwise they're wasting money.

And at the end of the day, while more people are covered the government has still paid 56 billion to cover uncompensated health care costs, so no one is really saving money when low quality plans are offered at more affordable rates.