Overthinking is when someone spends too much time analyzing or worrying about a situation, often leading to stress and confusion. Instead of making a decision or taking action, a person might replay the same thoughts repeatedly, which can make problems seem bigger than they really are. This can happen in everyday situations, like deciding what to say to a friend or worrying about a job interview. This habit can affect mental health, causing feelings of anxiety and self-doubt. To combat overthinking, it's helpful to practice mindfulness or talk to a therapist, who can provide strategies to manage these overwhelming thoughts and promote a clearer mindset.