Anxiety is a common emotional response characterized by feelings of worry, dread, and unease. It can manifest physically as sweating, agitation, and a rapid heartbeat. Anxiety is often triggered by stress, past trauma, or certain medical conditions. A mental illness like anxiety can drastically change a person's way of life and make it very difficult for them to afford therapy. Your body may begin to perspire, you may feel agitated and anxious, and your heart rate may increase. The various types of anxiety in this article with their systems are “Obsessive- compulsive disorder (OCD), Post-traumatic stress disorder (PTSD), Social phobia or social anxiety disorder (SAD), Specific phobia (SP) and Generalized anxiety disorders (GAD)”. The 14% populations are experiencing and 2.5% children also in 1 year. The amygdala is a part of the brain that is essential for processing and controlling fear and anxiety. It takes in sensory information from the environment and communicates with other brain regions to start the "fight or flight" response