College students have moved into their dorms and classes have at many campuses around the country. But that doesn't mean freshmen are settled, yet.

Adjusting to college rhythms and living away from home doesn't happen overnight. MORE : Most U.S. women of reproductive age have elevated risk for birth defects

College marks the first time many students have been away from their families and childhood friends for an extended period of time. This can trigger a mixture of strong emotions including homesickness, anxiety and depression – even grief, according to local experts.

"There is a degree of loss and mourning that happens with certain living away from those relationships, you're then thrust into this entirely new environment," said Dr. Richard Chung, an adolescent medicine specialist

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