Cardiology
Expert articles on heart health, cardiovascular disease prevention, and cardiac treatments.
Dizzy When You Stand Up? Understanding Orthostatic Hypotension
That brief dizziness or lightheadedness when you stand quickly has a name: orthostatic hypotension. It's a sudden blood pressure drop — and while usually harmless, in some people it signals dehydration, medication side effects, or a nervous system problem.
Cholesterol Explained: LDL, HDL, Triglycerides, and What Your Numbers Mean
A blood cholesterol test gives you four numbers that can predict your heart disease risk. Here's what LDL, HDL, total cholesterol, and triglycerides actually mean — and how to improve each.
Atrial Fibrillation (AFib): Causes, Symptoms, and Treatment
AFib is the most common heart rhythm disorder, affecting over 33 million people worldwide. Learn what causes it, how it feels, and how it's treated — including ablation and anticoagulation.
Swollen Legs and Ankles: Causes of Oedema and When It's Serious
Leg swelling is common but its causes range from benign venous insufficiency to heart failure and deep vein thrombosis. Knowing which pattern of swelling requires urgent care versus lifestyle changes is essential.
Shortness of Breath: Common Causes and When It's an Emergency
Dyspnoea — the sensation that you can't get enough air — has cardiac, pulmonary, and non-medical causes. Knowing which symptoms signal an emergency versus which indicate a treatable chronic condition is essential.
Chest Tightness: Causes, Warning Signs, and When to Call 911
Chest tightness has dozens of causes — from heart attack and blood clots to acid reflux and anxiety. Knowing which features distinguish an emergency from something benign could save your life.
Heart Palpitations: Why Your Heart Skips a Beat and When to Worry
Fluttering, pounding, or skipped heartbeats are alarming — but most palpitations are harmless. Learn the difference between benign ectopic beats, atrial fibrillation, and the rare causes that need urgent attention.
Heart Attack Warning Signs Every Person Should Know
A heart attack occurs every 40 seconds in the US. Recognising symptoms — including atypical ones common in women — and calling emergency services immediately can mean the difference between life and death.
Understanding Your Cholesterol: HDL, LDL, and What the Numbers Mean
A cholesterol panel contains four numbers that together paint a picture of your cardiovascular risk. Learn what each means, how diet affects them, and when statin therapy is appropriate.