A habit is a behavior or action that is repeated regularly and often occurs subconsciously. It can be a simple routine, like brushing your teeth every morning, or a more complex behavior, such as exercising several times a week. Habits can be positive, like maintaining a healthy diet, or negative, like smoking. Habits are formed through a process called habit formation, which involves cues, routines, and rewards. Over time, these behaviors become automatic, making it easier to perform them without much thought. Understanding habits can help individuals make positive changes in their lives, such as adopting new routines or breaking unwanted ones.