Can Meditation Help Cut Heart Disease Risk?

Being a 7000-year-old practice, meditation is a technique used to achieve a mentally clear and emotionally calm state by focusing the mind on a particular object, thought or activity. Meditation may be employed to reduce stress, anxiety, depression, and pain, and increase peace, perception and wellbeing. Stress is a risk factor for heart disease. 

Research on meditation and cardiovascular health is limited, but some studies did suggest that meditation may boost the defense against heart disease. In fact, there is some evidence that meditation may speed up activity in the parasympathetic nervous system, which is involved in lowering blood pressure and heart rate during periods of relaxation.

According to a scientific statement from the American Heart Association (AHA) published September 28, 2017 in the ‘Journal of the American Heart Association’, the studies on meditation suggest a possible benefit of meditation on heart disease risk reduction.

The attention was focused on the effects of various sitting meditation practices, including mindful meditation, Samatha, Zen meditation, and transcendental meditation, and excluding combined mind-body practices like yoga and Tai Chi. This is because the physical activity involved in such practices has already been shown to benefit heart disease risk.

In their review of previously published studies, researchers found that meditation is associated with reduced stress, anxiety, and depression and improved sleep quality and general wellbeing. The researchers also reported that meditation may also help to lower high blood pressure, help people who smoke quit, and may help lower heart attack risk. 

One of the studies being reviewed involved 201 people with coronary artery disease participated in either a transcendental meditation program or a health education program. Transcendental meditation is a type of meditation that involves sitting with the eyes closed and repeating a mantra. After about 5 years, mortality and the number of heart attacks or strokes was significantly lower in those in the meditation group.

While the findings suggested that meditation has a possible benefit on cardiovascular risk, researchers emphasize that more high-quality, large-scale clinical trials is needed before any conclusions can be made.

Nevertheless, as stated by the researchers, meditation may be a low-cost, low-risk practice that can be used together with conventional strategies like diet, exercise, and other lifestyle modifications.

Generally, other health experts not involving in the study agree that meditation may help lower the risk of heart disease by countering the impact of stress on the body. When people are under stress, their fight or flight response can be triggered, leading to a release of stress hormones and spikes in blood pressure, heart rate, oxygen consumption and a release of inflammatory chemicals in the body. Meditation can trigger the opposite of a fight or flight response, encouraging the body to slow down and improving risk factors for heart disease like metabolic problems or inflammation.