A recent medical study has revealed that even seemingly mild viral infections — such as flu, coronavirus, or the common cold — can significantly raise the risk of a heart attack. Experts explain that this happens through several biological mechanisms:
1️⃣ Inflammation in the Body
When the body fights a viral infection, the immune system becomes highly active.
This leads to inflammation, which can damage the inner walls of blood vessels (arteries).
Such damage accelerates atherosclerosis (the buildup of fatty deposits), increasing the likelihood of a blocked artery — and consequently, a heart attack.
2️⃣ Increased Risk of Blood Clots
Some viral infections make the blood thicker and more prone to clotting.
These clots (thrombi) can obstruct blood flow to the heart, causing a heart attack, or to the brain, resulting in a stroke.
3️⃣ Oxygen Deficiency
Respiratory viruses like influenza or COVID-19 can reduce oxygen levels in the body.
The heart must work harder to supply oxygenated blood, and for those with pre-existing heart disease, this added strain can trigger a cardiac event.
4️⃣ Direct Impact on Heart Muscles (Myocarditis)
Certain viruses directly attack the heart muscle, causing myocarditis — inflammation of the heart tissue.
This can weaken the heart’s ability to pump blood efficiently and cause symptoms like chest pain, irregular heartbeat, and shortness of breath, which can resemble a heart attack.
🔹 Expert Recommendations
- Rest well, stay hydrated, and manage fever during viral infections.
- People with heart disease, diabetes, or high blood pressure should consult a doctor immediately if they get the flu.
- Get regular vaccinations (especially flu shots) to reduce stress on the cardiovascular system.
💬 Summary:
Even a common cold or flu shouldn’t be taken lightly — these infections can cause inflammation, blood clotting, and oxygen deficiency, all of which raise the risk of a heart attack. Maintaining a healthy lifestyle and seeking timely medical care are the best defenses.
