Did you know that MDMA (aka Ecstasy) has other practical uses besides helping you make mud-angels on the ground at a Phish show? Well scientists know, and they are using this drug as a potential treatment for people with Post-Traumatic Stress Disorder. Studies found that a majority of people with PTSD who have taken the drug had drastically improved their sleep patterns and decreased symptoms of the disorder. Read more on the study here.