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We hear a lot about PTSD these days, and with good reason. As more people confront trauma and come away with severely debilitating disorders, it becomes that much more important to understand the mechanism, in order to find ways to treat or prevent it. And one of the ways people are seeking to understand PTSD is by trying to find genetic risk factors for the disorder, in the hope that familial traits will be able to predict who might develop PTSD and who might not, allowing for preventative treatments before exposure, and better treatments after trauma.

Risk persisted after risk factors including obesity, smoking, high blood pressure, high cholesterol, were accounted for

"Early Show" medical correspondent Dr. Jennifer Ashton talks to Erica Hill and Chris Wragge about the risk factors for osteoporosis and what you can do to minimize them.

Millions of cases of Alzheimer's disease could be avoided by taking steps to curb seven risk factors tied to dementia

Researchers have pinpointed "modifiable" risk factors for leading form of dementia