Your brain focuses on some alleged thread, for instance, a very scary thought that was floating somewhere at your subconscious. Your thalamus – the part of the brain responsible for regulating consciousness, sleep and alertness – transfers that information to your amygdala – the part of the brain responsible for emotional reactions, decision-making and memory – which marks it as “danger” and sends a signal to your sympathetic nervous system, activating the fight-or-flight response.
Panic attacks involve sudden feelings of terror that strike without warning. These episodes can occur at any time, even during sleep. People experiencing a panic attack may believe they are having a heart attack or they are dying or going crazy. The fear and terror that a person experiences during a panic attack are not in proportion to the true situation and may be unrelated to what is happening around them. Most people with panic attacks experience several of the following symptoms:
People with generalized anxiety disorder (GAD) display excessive anxiety or worry, most days for at least 6 months, about a number of things such as personal health, work, social interactions, and everyday routine life circumstances. The fear and anxiety can cause significant problems in areas of their life, such as social interactions, school, and work.