Scientists at the Herlev and Gentofte Clinic in Copenhagen found that smoking not only damages blood vessels, but also directly harms the heart, and more so than was thought.
For decades, experts have known that smoking can cause clogged arteries, which can eventually cause heart disease and strokes.
A study of nearly 4,000 people showed that cigarettes can also make heart muscles thicker and weaker than in those who have never touched tobacco.
As a result, muscle walls have difficulty pumping blood, which impairs blood flow and increases the risk of arterial thrombosis.
In addition to making the walls thicker, heavier, and worse at contracting, in people who smoke, the left ventricle – especially the important one – has less volume and less ability to pump blood through the body, further impairing blood supply.
The team also noticed that the changes in the heart increased depending on how long the person smoked. And the longer a person smoked, the worse their heart did. However, experts found that the heart muscles can return to normal to a certain extent, so even if you’re an avid smoker, it’s not too late to quit, the Danish cardiologists say.
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