Post-traumatic stress disorder (PTSD) is a mental illness that occurs when a person has encountered or seen tragedy in their life that has caused tremendous fear, panic, or a sense of helplessness. My cousin has been diagnosed with post-traumatic disorder (PTSD) last year after he lost his wife in an accident. His daily life had become miserable after this as he was devastated by such loss. Even after months of loss, he was unable to come out of that pain, and the suffering was impacting his mental and physical health drastically.