How Positive Thinking Impacts Your Heart

The dialogue between the mind and the body has fascinated scientists and philosophers since they got together but modern medicine, for many years ago, has stopped being speculative. A huge amount of research work has recently come forward which has demonstrated once and for all what many people have felt for a long time, viz: The thoughts that go through your mind, can leave measurable, long term changes in different parts of your body including your physical health and one instance where that is more remarkable than anywhere else is the cardiovascular system. In truth, positive thinking is not a mere happy-go-lucky attitude. From numerous perspectives, it turns out, it is a heart-related therapy.

The Science That Underlies the Mind-Heart Link

Though it may seem like the mind is an isolated organ that exists apart from the body, thoughts are not abstract events that only happen within human beings. In other words, every emotion evokes a chain reaction in the body, such as hormones being released, blood vessels widening or narrowing and the neural net shifting back and forth between quietness and high alert state. Persistent negativity, persistent anxiety, and chronic stress continually keep the body in a condition of physiological tension.

After a while, the hormone cortisol responsible for stress will gradually become elevated, the inflammatory process will increase, and the heart will be forced to work harder than it should. Positive thoughts can though disrupt this cycle. While a mind that stays on the bright side of things, the so-called “rest and digest” (the autonomic nervous system responsible for slowing down the heart rate, lowering the blood pressure, and facilitating digestion) becomes much more involved. In addition, when one is feeling positive, the body starts healing after the constant stress of the city environment.

Optimism and Risk for Cardiovascular Disease

Various big-scale investigations have found that there can be strong links of optimism and lower cardiovascular risk. For example, a paper written in JAMA Network Open involved many thousands of participants, and it revealed that people with more optimism had a lower rate of heart disease, strokes, and deaths from these causes. Also, a significant Harvard study lasting eight years followed over 70,000 women and found that the most optimistic women were 38% less likely to die from heart disease compared to the most pessimistic ones. Awarely or not, optimists usually have better cholesterol level, lower blood pressure and a healthier state of inflammatory marker. These are important indicators of the future health of the heart. Their difference is not a minor statistical point, they really represent differences in life expectancy and quality of life.

Why a Positive Outlook Is Good for the Heart

The protective mechanisms work at several levels concurrently. People who think positively are more likely to engage in heart-healthy behaviors – they exercise more consistently, eat better diets, sleep better, and are more likely to seek medical care if something doesn’t feel right. They tend to bounce back from setbacks more quickly and have lower overall levels of chronic stress. On a purely biological level, positive emotions have been associated with higher levels of heart rate variability, a measure of the heart’s ability to adapt that is strongly tied to cardiovascular resilience. A healthier heart is one that can respond flexibly to changing demands. It also seems to reduce the incidence and magnitude of the fight-or-flight response, shielding the cardiovascular system from repeated bouts of undue physiological stress.

Developing a Positive Mental Attitude for Heart Health

The good news is that optimism is not a personality trait that is set in stone. The research in positive psychology is consistent in showing us that it is something that can be practiced and developed. In clinical studies, gratitude journaling — the practice of writing down three things you’re grateful for each day — has been shown to lower stress hormones and improve markers of cardiac health over time. Mindfulness meditation has been shown to reduce blood pressure and cortisol levels, and the regularity of practice has really caught the attention of cardiologists.

And perhaps most importantly, social connection is independently associated with lower rates of heart disease. Social connection is one of the most powerful drivers of positive emotion. Even simple things such as changing negative self-talk, time in nature, or meaningful work activate the biological systems that protect the heart.

The Bottom Linel

The heart is not a separate mechanical pump, working apart from thought and feeling. It is embedded in a living system, which responds moment by moment to the quality of the inner life we live in. Science has shown that choosing to be optimistic—or working to be—is one of the most powerful heart-protective decisions a person can make. It turns out that taking care of your mind is one of the easiest ways of taking care of your heart.