Fear is an emotional response to perceived threats or danger. It can be triggered by real or imagined situations, and it often prepares the body to react through the "fight or flight" response. This response involves physiological changes, such as increased heart rate and heightened alertness, which help individuals respond to challenges or threats.
Fear can serve a protective function, helping people avoid harmful situations. However, excessive or irrational fear, known as phobia, can interfere with daily life and well-being. Understanding fear and its effects can help individuals manage their emotions and reactions in various situations, promoting better mental health.