One of the questions I think people underestimate when it comes to heart health is the impact of chronic stress.

Most people think heart health is only about cholesterol, smoking, blood pressure, genetics, and those factors are very important. We talk about them all the time. But what many people fail to realize is that the human body was never designed to live in a constant state of stress the way we’re increasingly seeing today.

Stress itself is not the enemy. In short bursts, stress can actually help us survive. It increases alertness, raises adrenaline levels, and prepares our bodies to respond to danger. We call this the fight-or-flight response.

The problem is that modern life has turned stress into a nonstop condition. There are financial pressures, lack of sleep, work demands, social isolation, constant notifications on our phones, relationship struggles, caregiving responsibilities, and a general sense of fear and uncertainty about the world.

When stress becomes chronic, the body begins producing elevated levels of stress hormones such as cortisol and adrenaline for prolonged periods. Over time, this can significantly raise blood pressure, increase inflammation, worsen diabetes, disrupt sleep, contribute to weight gain, and even accelerate plaque buildup in the arteries.

As a heart surgeon, I’ve cared for many patients who seem to have done everything right. They’ve exercised, avoided smoking, maintained a reasonable weight, and have no strong family history of heart disease. Yet they still develop significant cardiovascular problems.

Sometimes chronic stress may be the missing piece of the puzzle.

Stress also changes behavior, often without people realizing it. Sleep suffers. Exercise decreases. Eating habits worsen. People may drink more alcohol and neglect their medical care because they feel too busy.

In many ways, stress amplifies existing risk factors, and the heart feels the consequences.

Stress can contribute to irregular heart rhythms such as atrial fibrillation. It can worsen chest pain, increase the risk of heart attacks, and in some cases even contribute to sudden death. There is also a condition called stress-induced cardiomyopathy, commonly known as “broken heart syndrome,” or by its medical name, Takotsubo syndrome. Severe emotional stress can directly impair and damage the heart muscle itself.

But here’s the important part to understand: managing stress does not mean eliminating every difficulty from your life. That’s simply impossible.

What it does mean is learning how to recover from stress.

Sleep matters. Exercise matters. Relationships matter. Having purpose matters. For some people, faith matters. Quiet moments matter. And perhaps most of all, laughter matters.

Sometimes the healthiest thing you can do for your heart isn’t another medication or another test. Sometimes it’s slowing down long enough to care for your mind and emotional well-being.

And for those of us in healthcare, this applies to us too.

We spend our lives caring for others, but we also have to remember to take care of ourselves.

Protecting the heart isn’t only about prolonging life. It’s about preserving the quality of the life we’re living right now.