Mindfulness and optimism programs can cut blood pressure within eight weeks

A team headed by Rosalba Hernandez reviewed 18 randomized controlled trials evaluating mindfulness, gratitude and optimism interventions for adults at elevated cardiovascular risk. The studies, which varied in delivery method—from phone calls and apps to in-person groups—generally lasted six to 12 weeks and involved participants in their late 50s to mid-60s. Results showed that programs featuring daily practice reinforced by weekly sessions reduced systolic blood pressure by up to 7.6 points and lowered inflammation markers such as high-sensitivity C-reactive protein.

Behavioral changes, including increased steps and improved diet, were observed, though medication adherence improved only in programs that added motivational interviewing. The authors argue that regular, high-frequency positive-psychology dosing could become a practical addition to heart-health treatment, with ongoing, less-intensive support needed for long-term maintenance. Co-authors included scholars from the University of South Florida, Northwestern University, Stanford Medicine and other institutions.