Which Statement About the Results of Research on Mindfulness Is

Which statement about the results of research on mindfulness is FALSE?

A) Organ transplant recipients who also received mindfulness training at the same time were lower in depression, anxiety, and insomnia 6 months later.
B) Diabetic patients who received mindfulness training were significantly better both medically and psychologically a full year later than were similar patients who did not receive the training.
C) Making a mindfulness-based change in your thinking can decrease stress and many of its consequences.
D) Mindfulness takes too much effort and time, and actually increases stress levels in people who receive the training.