January 2017 Study – The Shape of Change in Perceived Stress, Negative Affect, and Stress Sensitivity During Mindfulness-Based Stress Reduction:

The findings support the idea that mindfulness reduces negative emotions and also reduces the extent to which individuals perceive their days as stressful. Also, the results suggest that there is a dose-response relationship between the amount of mindfulness practice and reductions in daily stress and negative emotions. Simply put, the more you practice mindfulness the less stress you experience.