MIAMI ( – The Affordable Care Act, also referred to as Obamacare, has been in effect for a little over a year; and according to the Centers for Disease Control and Prevention, it’s making a big impact on health care for young adults.

One of the provisions of the bill allowed children to stay on their parents’ insurance plans through the age of 26.

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As of December, the CDC found that roughly 2.5 million more young adults with insurance coverage versus how many would have been uninsured without the health care reform law.

In terms of the Sunbelt states, including Florida, roughly 900,000 more young adults now have insurance because of the new law.

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But, the future of the Affordable Care Act is still very much in question. Multiple state attorneys general are fighting the implementation of the law and will battle the federal government before the Supreme Court in early-2012.

The fight is primarily over the power of Congress to force people to buy health care insurance or face a fine. The states said this is Congress overstepping its bounds.

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Congress’ justification for the individual mandate, which has also been supported by Republicans Mitt Romney and Newt Gingrich, lies in the Commerce Clause of the U.S. Constitution.