Post-traumatic stress disorder (PTSD) is a psychiatric disorder, occurring as a by-product of witnessing or experiencing a traumatic event. The most common causes of PTSD are a natural disaster, vehicular accidents, an act of terrorism, wartime combat, sexual assault, or any other violent act. This isn’t even close to a full list.

An ever-growing list of scientific professionals are putting on their lab coats and focusing their super-powered microscopes on Nanotechnology – also known as the study of very, very, very small things.