👉 Psychorhythmia is a phenomenon in which an individual's heart rate increases or decreases slightly when they are experiencing a certain emotional state, such as excitement or sadness. This can be caused by changes in electrical activity within the brain that are not typically associated with physical activity, and it often occurs during periods of intense emotion or stress. Psychorhythmia is considered a physiological response to stress and may have other psychological effects, such as increased heart rate and anxiety.