Regret is an emotional response to an event or action that was performed or not performed in the past, and which causes negative feelings in a person. From a psychological point of view, regret is a normal human reaction to various life situations, such as the loss of a loved one, failure in career, relationship breakups, missed opportunities, etc. Regret can be associated with feelings of guilt, loss, disappointment and grief, and can be accompanied by physical sensations such as heaviness in the chest, tears and insomnia. Regret can be beneficial because it helps a person to realize his mistakes and understand what changes need to be made in his life so as not to repeat past mistakes in the future. However, if regret becomes too intense or prolonged, it can lead to depression, anxiety and other psychological problems, so in such cases the help of a psychologist may be needed. A few examples of when regret can become harmful: Severe regret can lead to depression and anxiety, especially if a person cannot accept their mistake or cannot find a way to cope with past events. If a person cannot stop complaining about their life, then it can lead to to anxiety and despair in him and those around him. Regret for too long can rob a person of the ability to live in the present, because he will always be focused on the past. If regret causes a person to avoid certain situations or actions, then this can hinder his personal and professional development. Some people use regret as an excuse for their actions or unwillingness to change something in their life. Overall, regret can be beneficial if a person uses it to realize their mistakes and to better understand how to make their life better. However, if regret becomes unproductive or begins to harm a person's health, then it is important to find a way to cope with these emotions and move on to the next stage of life.