Mindfulness is the practice of focusing on the moment without letting yourself be distracted.

The Helpguide.org site mentions these possible benefits:

• More satisfaction, and greater ability to cope during difficult times.
• Less concern with worries and regrets, stronger relationships and less worry about self-esteem.
• Lower stress and blood pressure, and improved heart health.
• Better sleep, and better management of chronic pain.

Source: HealthDay