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5 Interesting Facts About Your Heart

Think you know everything about your heart? Here are five surprising facts that might change the way you care for your ticker.

Updated July 11, 2025

By Amee Dharia, DO, Cardiologist — Virtua Cardiology

Cardiovascular disease (CVD) might seem like a familiar topic, but there's always plenty more to learn. Here are five surprising facts that might just change how you think about your heart.

1. Young adults aren't in the clear.

Nearly 50% of Americans ages 20 and older have cardiovascular disease – and not all of them are older adults.

Plaque starts building up in our arteries as early as childhood, so there's no time like the present to protect your heart. Regular exercise, eating a Mediterranean-style diet, getting enough sleep, and not smoking all are keys to preventing cardiovascular disease.

2. CVD is hard on new moms.

It's sad, but true: CVD is the leading cause of maternal death in the U.S.

Pregnancy is sometimes called nature's stress test. Metabolic demands on the heart can expose underlying cardiac issues, while conditions developed during pregnancy, like hypertension and pre-eclampsia, can put you at risk for stroke, high blood pressure, and diabetes later in life.

Regular checkups during and after pregnancy are vital.

3. Dental problems could harm your heart.

Research shows that people with poor oral health are more prone to cardiovascular issues, including heart attacks and strokes. The "why" behind this connection isn't totally clear. But what matters most is knowing brushing and flossing daily could help your heart, too.

4. Heart attacks can happen without chest pain.

Sometimes, heart attacks cause discomfort in the back, neck, jaw, arms, or stomach. Other people may only experience shortness of breath, sweating, or sudden dizziness. Some women also describe experiencing upper back pressure, anxiety, upset stomach, shoulder pain, or unusual tiredness.

5. Sleep is a heart-healthy hero.

Not getting enough z's can contribute to high blood pressure, obesity, and diabetes – three factors linked to heart disease. To help protect your heart, aim for seven to nine hours of slumber each night.

Get Connected With Heart Care in Your Neighborhood

Heart health is complex. That's why Virtua cardiologists use the latest approaches to prevent and treat heart disease. To make an appointment with a Virtua heart specialist, call 888-847-8823.