Mindfulness and Gratitude Training Improve Blood Pressure and Heart Health in Weeks

Study Findings on Positive Psychology and Heart Health

A recent study led by Rosalba (Rose) Hernandez, a professor of social work at the University of Illinois Urbana-Champaign, reviewed results from 18 randomized controlled trials testing positive psychology and mindfulness interventions designed to improve mental or physical health. The research team found these psychological strategies were consistently associated with improvements in blood pressure, inflammation, and other heart disease risk factors. The clinical trials generally enrolled groups of 50 to 200 adults in their late 50s to mid-60s who already faced elevated cardiovascular risk, such as uncontrolled hypertension or heart failure. Among studies reporting gender breakdown, women made up 35% to 55% of participants. “In hypertension and postacute coronary syndrome cohorts, mindfulness-based programs delivered over an eight-week period reduced systolic blood pressure and lowered inflammatory markers such as high-sensitivity C-reactive protein and fibrinogen,” said Hernandez, who is a Fellow of the American Heart Association. Hernandez also highlighted the results of a 12-week spirituality-based digital intervention, noting it achieved one of the largest reductions by lowering systolic blood pressure measured with a standard cuff by 7.6 points, and central systolic pressure in the aorta by 4.1 points.

Delivery Methods and the Therapeutic Dose

The reviewed programs varied widely in delivery. Some relied on structured phone sessions, journaling paired with brief check-ins, or digital tools like apps and text messages, while others utilized interactive in-person group meetings or hybrid approaches. Most programs included weekly sessions alongside at-home activities, lasting between six and 12 weeks. Researchers sought to establish the proper “dose” of positivity required to gain health benefits. Programs featuring more frequent participant contact produced the most reliable physiological benefits, according to the findings. “The therapeutic dose that was most consistently linked with improvements in blood pressure, inflammation and endothelial function was daily practice reinforced by weekly sessions over eight to 12-week periods,” Hernandez said, noting that ongoing, less-intensive contact may be needed to sustain behavioral changes over time.

Clinical Trials on Blood Pressure and Behavior

Separate late-breaking science presented at the American Heart Association’s Scientific Sessions 2022 provided additional evidence regarding customized mindfulness programs. Eric B. Loucks, Ph.D., associate professor of epidemiology and director of the Mindfulness Center at Brown University in Providence, Rhode Island, led a clinical trial from June 2017 to November 2020 involving more than 200 adults with elevated or high blood pressure. Adults with elevated blood pressure who participated in the eight-week mindfulness program achieved significantly lower blood pressure levels and greatly reduced sedentary time when evaluated at a six-month follow-up. The participants included men (41%) and women (59%), with an average age of 59 years. “Mindfulness is non-judgmental, present-moment awareness of physical sensations, emotions and thoughts,” Loucks said. He explained that participants were trained in attention control, self-awareness, and emotion regulation to support healthy changes in diet, physical activity, alcohol consumption, and stress management. Compared to participants who received enhanced usual care—such as a home blood pressure monitor and educational information—those in the mindfulness group were more likely to eat heart-healthy foods and report lower perceived stress levels. While mindfulness programs successfully improved diet and physical activity, the study noted they did not produce the same medication adherence benefit as programs incorporating motivational interviewing, which increased cardiac patients’ activity by 1,800 steps per day.