Findings from a new study published in Cancer by a Canadian group suggest that our mental state has measurable physical influence on ... our DNA. Dr. Linda E. Carlson and her colleagues found that in breast cancer patients, support group involvement and mindfulness meditation - an adapted form of Buddhist meditation in which practitioners focus on present thoughts and actions in a non-judgmental way ... are associated with preserved telomere length. Telomeres are stretches of DNA that cap our chromosomes and help prevent chromosomal deterioration. We want our telomeres intact. In Carlson's study distressed breast cancer survivors were divided into three groups. The first group was randomly assigned to ... mindfulness meditation and yoga; the second to 12-weeks of group therapy; and the third was a control group, receiving just a 6-hour stress management course. Telomeres were maintained in both treatment groups but shortened in controls. Previous work hinted at this. More recent work looking at meditation reported similar findings. The biologic benefits of meditation in particular extend well beyond telomere preservation. Earlier work by Carlson found that ... mindfulness is associated with healthier levels of the stress hormone cortisol and a decrease in compounds that promote inflammation.