"Post-traumatic stress disorder (PTSD) can present with a number of symptoms, including anxiety, depression, flashbacks, and trouble sleeping. If your partner has PTSD, you may want to help, but find yourself at a loss. The simple truth is that PTSD can be extremely debilitating--not just for the person who has experienced trauma first-hand, but for their partners as well. And while there are many books written for those suffering from PTSD, there...