Heart Health Archive

Older people with atrial fibrillation are sometimes advised to stop taking clot-prevention drugs due to fears about bleeding. But a 2025 study suggests that the risk of stroke and heart attack from stopping the drugs outweighs the risk of bleeding.

People who aggressively lower their high blood pressure not only help their heart health, but also may protect their brains from cognitive decline in the process, according to a 2025 study.

A 2025 studyfound that intermuscular fat-fat stored within muscle tissue-may increase a person's risk of heart disease.

Substituting potassium-containing salt substitutes for regular salt can help lower blood pressure as well as the risk of stroke. But people should also check the sodium content in foods and eat more potassium-rich produce.

TV medical dramas often portray treatments for heart attacks and cardiac arrest. While the timelines are often accelerated and certain aspects may be dramatized to engage viewers, the medical details are, for the most part, factual and authentic. Writers and producers routinely rely on health care experts - including Harvard doctors - to make sure the information is accurate. For people with heart disease, seeing how emergency physicians treat urgent conditions may show them what to expect.

With ticks thriving in a wider geographic range, appearing earlier and sticking around later, it's important to stay vigilant about protecting yourself against ticks that cause Lyme disease and other illnesses. Learn some steps you can take to avoid tick bites.

Long-term research found that higher consumption of butter increases mortality risk, while higher consumption of plant-based oil lowers it. And substituting certain plant oils for butter might help people live longer. What's a butter lover to do?

Using tobacco in cigars, pipes, or smokeless products such as snuff is associated with distinct heart-related risks.

For people who have both heart disease and arthritis, two of the main treatments-exercise and medications-require careful planning and attention. Joint pain makes certain types of exercise difficult, and commonly used drugs for both conditions can have potentially serious interactions.