Heart & Vascular Health Blog
Evidence-based insights on cardiovascular and vascular health from Dr. Peter Chang — written to help patients and their families make informed decisions.
Leg Cramps at Night: Causes, Red Flags & When to Worry
Night leg cramps wake you up without warning — a sudden, violent tightening in the calf that takes minutes to release. For most people they are benign. But for some, they are the first signal of a circulatory or nerve problem that deserves proper investigation.
Can Atrial Fibrillation Be Cured?
AF cannot be cured in the way an infection can be cured. But for a meaningful proportion of patients, it can be put into long-term remission — and for virtually everyone, it can be managed in a way that protects against its most serious consequence: stroke.
Heart Screening Before Exercise: Who Needs One and What to Expect
Most people who collapse during exercise had no prior symptoms. They felt fine. A pre-exercise cardiac screening won't guarantee anything — but it identifies the conditions most likely to cause a problem before they get the chance to.
Spider Veins vs Varicose Veins: What's the Difference?
Most people who notice fine red lines on their legs worry they have varicose veins. Most people with varicose veins assume it's just cosmetic. Both assumptions can lead you astray. Here's what actually sets these two conditions apart — and when it matters.
Plaque, Atherosclerosis & Silent Heart Disease: What You Cannot Feel Can Still Kill You
Most heart attacks happen in people who felt perfectly fine beforehand. Atherosclerosis builds silently for decades — and the plaques most likely to rupture are often not the most obstructive ones.
The Frequent Flyer's Real Health Risks: Radiation, DVT, and Circadian Stress
Executives who fly extensively face real cardiovascular risks — but cosmic radiation is the least of their concerns. DVT, cabin hypoxia, and chronic circadian disruption deserve far more attention.
From Confusion to Clarity: A 37-Year-Old Woman's Lipedema Story
A 37-year-old woman struggled for years with heavy, painful legs before receiving a dual diagnosis of lipedema and venous reflux. Through ultrasound and combined treatment, she achieved significant relief.
Atrial Fibrillation and Stroke Risk: What You Need to Know
AF raises stroke risk fivefold. In Singapore, NOACs have replaced warfarin as standard care — and new research suggests selected ablation patients may safely stop anticoagulation under specific conditions.
How Long Does a Cup of Coffee Keep You Awake?
A cup of coffee reaches peak caffeine levels within 15–45 minutes and maintains noticeable effects for 5–6 hours due to caffeine's half-life. Here's what that means for your sleep.
The Search for Sleep: Finding Rest in a Restless World
Chronic insomnia raises the risk of depression, anxiety, diabetes, and high blood pressure. These evidence-backed strategies address the root causes — not just the symptoms.
You Will Never Regret Washing Your Face at Night
Nightly face washing removes accumulated bacteria, supports skin healing during sleep, and helps prevent wrinkles. Here is why it matters — and how to do it properly.
Battle of Cats and Dogs: Which Pet Is Better for Your Heart?
Research shows both cats and dogs benefit cardiovascular health — but dogs hold a slight edge through the exercise and activity they encourage. Here is what the science says.
Milk Does a Body Good: Why Adults Should Keep It on the Menu
A daily glass of milk delivers nine essential nutrients including calcium, vitamin D, and protein — with a 2018 Lancet study linking regular dairy intake to a 22% lower risk of heart disease.
Understanding Atrial Fibrillation: Symptoms, Risks & Treatment Options
Atrial fibrillation is the most common sustained heart rhythm disorder. Learn how to recognise the symptoms, what risks it carries, and the treatment options available in Singapore.
5 Warning Signs of Peripheral Artery Disease You Should Not Ignore
Peripheral artery disease affects millions globally and is often missed. Dr. Chang explains the key warning signs and why early diagnosis is critical.
Managing High Blood Pressure: Lifestyle Changes That Actually Work
Hypertension is often called the silent killer. Beyond medication, evidence-based lifestyle changes can significantly lower your blood pressure and reduce cardiovascular risk.
Radiofrequency Ablation for Varicose Veins: What to Expect
Modern treatment for varicose veins is minimally invasive and highly effective. Dr. Chang walks through the radiofrequency ablation procedure step by step.
What Does Your Coronary Calcium Score Mean?
A coronary calcium score is one of the most powerful tools for assessing heart attack risk — even before symptoms appear. Here's how to interpret your results.
Deep Vein Thrombosis: Prevention, Diagnosis & Treatment
DVT can be life-threatening if a clot travels to the lungs. Dr. Chang covers who is at risk, how it is diagnosed, and the full range of treatment options available.
More articles coming soon.
This section will be updated regularly with new posts from Dr. Chang.