For the first time, women are serving on the frontline of war. Learn about the health crisis veterans are facing -- post-traumatic stress disorder, or PTSD. Below are the 3 sets of symptoms to look for.

1. Re-experience

2. Avoidance

3. Arousal

Click here to learn about creative arts therapy for PTSD.

Click here to learn how veterans can get help.  

Click here to watch Part 2.

Click here to watch Part 3. 

Whether it's falling or flying, Dr. Oz has the answers to why you have the dreams that you do and what they might mean.