You could call it a silent health problem. One that can hit young adults just as they're adjusting to college life.

A researcher at Columbia University found almost 20 percent of young adults have personality disorders. People with these disorders might be paranoid (showing a mistrust in others), schizoid (having a lack of interest in social relationships) or antisocial (disregarding the rights of others). Other people might be narcissistic (lacking empathy) or obsessive-compulsive (following rules and codes strictly).

While personality disorders are important to recognize, they are still the second most common disorder. Many college students may have personality disorders, but most may be unaware they even exist.

When asked what they thought one of the most common disorders were among college students, 35 out of 100 MU students answered either alcohol related disorders or personality disorders.

Experts say alcohol is often a crutch for a wide range of emotional and personality problems. "Sometimes that coping mechanism can become something that they depend on on a regular basis, so that can be, that's what often leads to abuse," said Kim Dude of the MU Wellness Resource Center.

Dude says college students can help themselves by seeking treatment, sooner rather than later.