This therapy was also created by Zindel Segal and Mark Williams and was partially based on the mindfulness-based stress reduction program, developed by Jon Kabat-Zinn. The theories behind mindfulness-based approaches to psychological issues function on the idea that being aware of things in the present, and not focusing on the past or the future, will allow the individual to be more apt to deal with current stressors and distressing feelings with a flexible and accepting mindset, rather than avoiding and, therefore, prolonging them.