Mindfulness has been shown to be beneficial in a wide range of difficulties, ranging from physical pain to recurrent depression. It can improve the quality of our lives as a whole, irrespective of our reasons for wanting to do it.
Although, it is not specifically a relaxation technique, a sense of calm and equanimity is often experienced and is an added bonus. Every one of us can derive great benefits from regular Mindfulness practice. It is not a miracle cure but over time, it can greatly improve our overall sense of wellbeing, on physical, emotional and psychological levels.