The sympathetic nervous system is a branch of the autonomic nervous system that prepares the body for "fight or flight" responses during stressful situations. It increases heart rate, dilates pupils, and inhibits digestion, among other functions, to mobilize the body's resources for immediate action.| Simply Psychology
The parasympathetic nervous system is a subdivision of the autonomic nervous system (ANS), which regulates bodily functions outside of voluntary control, therefore being automatic. It is also called the ‘rest and digest' system as it conserves the body’s natural activity and relaxes the individual once an emergency has passed. It promotes relaxation, energy conservation, and recovery by slowing the heart rate, stimulating digestion, and facilitating other processes when the body is restin...| Simply Psychology
The amygdala is a complex structure of cells nestled in the middle of the brain, adjacent to the hippocampus (which is associated with memory formation). It is part of the limbic system and plays a key role in processing emotions and emotional reactions.| Simply Psychology
Anxiety disorders are characterized by distressing, persistent anxiety and are often paired with unhelpful behaviors that individuals may use to try to reduce anxiety, such as avoidance or other safety behaviors.| Simply Psychology
Narcissistic Personality Disorder (NPD) is a mental health condition characterized by a pervasive pattern of grandiosity, a constant need for admiration, and a lack of empathy for others. It falls under the category of Cluster B personality disorders in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), which also includes antisocial, borderline, and histrionic personality disorders.| Simply Psychology
Fear is a basic, emotional response to a perceived threat or danger. It triggers the body's 'fight-or-flight' response, leading to physiological changes like increased heart rate and adrenaline levels. Fear is an essential survival mechanism, helping individuals react to potentially life-threatening situations. It can respond to immediate, tangible threats and more abstract or future concerns. Fear can also be learned through past experiences or observations.| Simply Psychology