Health questions, answered simply
Plain-English articles by department and system of medicine. Every article lists the official sources it is based on, such as the WHO, NIH, CDC, NHS and the Ministry of Ayush.
Educational information only, not medical advice. Always ask a qualified doctor about your own health. In an emergency call 112 (India) or 911 (US). Disclaimer.
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95 sourced articles · page 4 of 4Holter Monitor: What the 24-Hour Heart Rhythm Test Involves
A Holter monitor is a small portable device that records the heart's rhythm for 24 to 48 hours. This article explains why it is used, how to wear it and what to expect.
3 min read · 19 Oct 2026Heart careTreadmill Test (TMT): Why It Is Done and What to Expect
An exercise stress test, often called a treadmill test or TMT, records your heart while you exercise. This article explains why it is done, how to prepare and what results may sho…
3 min read · 19 Oct 2026Heart careEchocardiogram (Echo) Test: What It Shows and What to Expect
An echocardiogram is an ultrasound scan of the heart. This article explains the main types, why doctors use it, what the scan involves and what to expect afterwards.
3 min read · 19 Oct 2026Heart careECG Test: What It Is, How to Prepare and What to Expect
An electrocardiogram (ECG) is a quick, painless test that records the heart's rate and rhythm. This article explains the types, how to prepare and what to expect.
3 min read · 19 Oct 2026Heart careCoronary Heart Disease: What It Is, Symptoms, Tests and Care
Coronary heart disease, also called coronary artery disease, is when fatty deposits narrow the arteries that supply the heart. This article explains causes, tests, care and preven…
3 min read · 19 Oct 2026Heart careAngina: Chest Pain Symptoms, Causes and Treatment Explained
Angina is a feeling of pain or tightness, usually in the chest, caused when the heart does not get enough blood. This article explains symptoms, causes, tests and care.
3 min read · 19 Oct 2026Heart careSupraventricular Tachycardia (SVT): Sudden Fast Heartbeat Explained
Supraventricular tachycardia, or SVT, is when the heart suddenly beats much faster than normal. This article explains symptoms, triggers, tests and treatment options.
3 min read · 19 Oct 2026Heart careHeart Palpitations: Common Causes and When to Worry
Palpitations are when you notice your heartbeat more than usual. This article explains common causes, which tests may be used and when to get medical help.
3 min read · 19 Oct 2026Heart careAtrial Fibrillation (AFib): Symptoms, Causes, Tests and Treatment
Atrial fibrillation is a heart rhythm problem in which the heartbeat is not steady. This article explains symptoms, risk factors, stroke risk, tests and treatments.
3 min read · 19 Oct 2026Heart careLiving With Heart Failure: Daily Self-Care and Support
Heart failure symptoms can change from day to day. This article explains the self-care steps and support the NHS and CDC describe, which work alongside your doctor's advice.
3 min read · 19 Oct 2026Heart careHeart Failure: Symptoms, Causes, Tests and Treatment Options
Heart failure does not mean the heart has stopped. It means the heart is not pumping well enough. This article explains symptoms, causes, tests and treatment in plain language.
3 min read · 19 Oct 2026Heart careStatins Explained: What They Do, Who May Need Them and Safety
Statins are prescription medicines that lower cholesterol and can help prevent heart attack and stroke. This article explains how they work, who may be offered them and the main s…
3 min read · 19 Oct 2026Heart careHow to Lower Cholesterol: Diet, Activity and Everyday Habits
Everyday habits can affect blood cholesterol. This article explains the diet, activity and lifestyle steps described by the CDC, NHS and WHO, with medical advice on top.
3 min read · 19 Oct 2026Heart careHigh Cholesterol: What It Is, Causes and How It Is Tested
High cholesterol means too much of a fatty substance in your blood, which can raise the risk of heart problems and stroke. This article explains causes, risk factors and blood tes…
3 min read · 19 Oct 2026Heart careSalt and Heart Health: How Much Salt Is Too Much?
Eating too much sodium raises blood pressure, which increases heart disease risk. This article explains the WHO limit, hidden sources of salt and simple ways to use less.
3 min read · 19 Oct 2026Heart careHow to Lower Blood Pressure: Lifestyle Steps That Help
Everyday habits play a big part in blood pressure control. This article explains the steps that the NHS, WHO and CDC recommend, alongside medical advice.
3 min read · 19 Oct 2026Heart careBlood Pressure Numbers Explained: What Is Normal, Elevated or High?
A blood pressure reading has two numbers. This article explains what they mean and how the CDC, NHS and WHO describe normal, high and low readings.
3 min read · 19 Oct 2026Heart careHigh Blood Pressure Symptoms: When Is It an Emergency?
High blood pressure usually has no symptoms, so the only way to know is to measure it. This article explains the warning signs that can appear with very high readings and when to …
3 min read · 19 Oct 2026Heart careWhat Is High Blood Pressure (Hypertension)? Causes and Risks
High blood pressure, or hypertension, is when the force of blood against artery walls stays too high. This article explains the risks, how it is found and how it is managed.
3 min read · 19 Oct 2026Heart careRecovery After a Heart Attack: Cardiac Rehab and Next Steps
Recovery after a heart attack takes time and varies from person to person. This article explains cardiac rehabilitation, long-term medicines and healthy changes your care team may…
3 min read · 19 Oct 2026Heart careHeart Attack Signs in Women: What to Watch For
Women can have the classic chest pain of a heart attack, but some notice other signs such as unusual tiredness or nausea. This article explains what the CDC, WHO and MedlinePlus s…
3 min read · 19 Oct 2026Heart careHeart Attack vs Cardiac Arrest: What Is the Difference?
A heart attack is a blocked blood supply to the heart, while cardiac arrest is when the heart suddenly stops beating. This article explains how they differ and what to do for each.
3 min read · 19 Oct 2026Heart careHeart Attack: Symptoms, Causes and What Happens in Hospital
A heart attack happens when blood flow to part of the heart is suddenly blocked. This article explains the warning signs, causes, tests and treatment, and why fast emergency help …
4 min read · 19 Oct 2026Departments
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