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Heart Health Archive

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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.

Machine learning used on mammograms may help predict heart disease

A type of artificial intelligence that uses a deep machine learning tool to analyze different features from routine mammograms can predict a woman's risk of heart-related problems, according to a 2025 analysis.

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.

Many people lack knowledge about high blood pressure

A 2025 survey suggests that many adults don't have a good understanding of high blood pressure, including not knowing what reading signifies high blood pressure and confusion about symptoms related to the condition.

How a healthy gut benefits your blood pressure

A diet low in sodium and rich in plant-based foods promotes a diverse, balanced population of gut microbes, which may help people maintain a healthy blood pressure. A salty diet increases the prevalence of bad microbes and reduces the number of beneficial microbes. When bad microbes accumulate in the gut, they form breakdown products and toxins that promote inflammation. Beneficial microbes feed on fiber, which is why a diet that provides a mix of healthy fiber from plant-based foods helps. These microbes produce short-chain fatty acids, which interact with specific receptors on cells that help regulate blood pressure.

The hidden heart danger of insufficient sleep

Insufficient sleep triggers a long list of physiological and hormonal changes that contribute to heart disease. For example, a lack of sleep can cause increases in blood pressure, blood sugar, inflammation, and weight. Doctors recommend getting at least seven hours of uninterrupted sleep per night. Strategies that promote better sleep include going to bed and waking up at the same time every day, creating a healthy sleep environment, and turning off electronics an hour before bedtime.

How relevant is heart rate variability?

Heart rate variability (HRV) is a measure of the tiny fluctuations in timing from one heartbeat to the next. Higher values are linked to better fitness levels and stress resilience.

Enjoy eggs - just skip the bacon

Eating two eggs per day doesn't appear to raise harmful LDL cholesterol, as long as people follow a diet low in saturated fat. Although eggs are high in cholesterol, dietary cholesterol doesn't have much of an effect on the amount in a person's bloodstream. But excess dietary saturated fat does raise blood cholesterol, which is why people should limit their saturated fat to 7% of their daily calories.

A new risk calculator estimates your heart's age

A free online tool that estimates your heart's age suggests that most adults have a heart that is older than their chronological age, according to a 2025 study.

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.

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