Heart Health Archive

Articles

Extra-virgin olive oil may be healthier than regular olive oil

A 2025 study found that a high intake of extra-virgin olive oil (EVOO) was linked to a lower risk of heart-related problems, while intake of common olive oil was not. Higher levels of beneficial polyphenols in EVOO may explain the difference.

The new blood pressure guidelines: What you need to know

The 2025 blood pressure guidelines recommend starting drugs to treat hypertension if people don’t meet blood pressure goals after three to six months of lifestyle changes. The guidelines also recommend that everyone with high blood pressure be screened for primary aldosteronism, and suggest that people with resistant hypertension (stubbornly high blood pressure) consider renal denervation, a procedure that disrupts some of the nerves around the arteries supplying blood to the kidneys.

Indoor air quality and heart health

A 2025 study found that using a high-efficiency particulate air (HEPA) filter to trap tiny particle pollutants may help lower blood pressure for people living near busy roads. Of particular concern are particles less than 2.5 microns in diameter, known as PM2.5, which creates inflammation that damages blood vessels and contributes to high blood pressure. Nearly a quarter of Americans live near vehicle-congested roads, and many more people are exposed to pollution from wildfire smoke.

Mind your heart for a longer, healthier life

Simple, proven strategies to live a longer, healthier life can help people become super-agers, defined as people who reach the age of 70 without any major diseases such as heart disease, cancer, or dementia. These habits include doing strength training to preserve muscle mass, eating a mostly vegetarian diet that provides many healthful nutrients, and prioritizing healthy sleep habits.

When and why you need drugs for atrial fibrillation

Many people with atrial fibrillation (afib) — a rapid, irregular heart rhythm — need to control symptoms, such as the feeling that the heart is racing or fluttering. Medication options include drugs that slow down the heart or help restore its rhythm. Because afib can also increase the risk of blood clots that can lead to a stroke, many of these people also need to take clot-preventing medications.

Is an apoB test a better way to check your cholesterol?

An apolipoprotein B (apoB) test counts the number of LDL particles in the bloodstream as well as other particles that can contribute to clogged arteries and heart attacks. All of these so-called atherogenic particles carry a single apoB molecule but varying amounts of cholesterol. ApoB values are more closely linked to heart disease risk than LDL cholesterol. People with signs of an unhealthy metabolism—such as prediabetes, a big belly, or elevated triglycerides—are far more likely to have a high apoB.

Beta blockers: Who benefits from these common drugs?

Doctors have long prescribed drugs called beta blockers to all heart attack survivors. These drugs, which slow down the heart and lower blood pressure, include atenolol (Tenormin) and metoprolol (Lopressor, Toprol). Growing evidence suggests that these drugs offer no meaningful benefit for people whose hearts still pump normally after a heart attack. Sometimes, however, a heart attack leaves the left ventricle (the heart’s main pumping chamber) unable to contract effectively. When that’s the case, beta blockers are still recommended.

Nearly everyone has at least one risk factor before a heart attack, heart failure, or stroke

A 2025 study suggests that more than 99% of people who have a first-time heart attack, stroke, or heart failure have at least one of four risk factors: unhealthy blood pressure, cholesterol, or blood sugar levels, or past or present smoking.

Ultra-processed foods linked to plaque buildup in neck arteries

A diet high in ultra-processed foods is linked to higher burden of fatty plaque in the carotid arteries, according to a 2025 study.

Free Healthbeat Signup

Get the latest in health news delivered to your inbox!

Sign Up
Harvard Health Publishing Logo

Thanks for visiting. Don't miss your FREE gift.

25 Gut Health Hacks is yours absolutely FREE when you sign up to receive health information from Harvard Medical School.

Sign up to get tips for living a healthy lifestyle, with ways to lessen digestion problems…keep inflammation under control…learn simple exercises to improve your balance…understand your options for cataract treatment…all delivered to your email box FREE.

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of 25 Gut Health Hacks.

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of 25 Gut Health Hacks.