Understanding cholesterol and heart health

Cholesterol is not all the same

Cholesterol is a fat-like substance your body needs to build cells and make certain hormones. The problem isn't cholesterol itself — it's the balance. A standard lipid panel looks at several things:

• LDL ("bad" cholesterol): contributes to plaque build-up in arteries.
• HDL ("good" cholesterol): helps remove cholesterol from the bloodstream.
• Triglycerides: another type of fat in the blood.
• Total cholesterol: the overall figure.

Why the balance matters

A higher level of LDL, combined with other risk factors (smoking, high blood pressure, family history, diabetes, being above a healthy weight), raises the long-term risk of heart attack and stroke. A good HDL level is generally protective. The numbers matter most when read together with your overall risk — not in isolation.

What a healthy result looks like

As a general guide:

• Total cholesterol: below 5.0 mmol/L is a common target, though targets vary by individual risk.
• LDL: below 2.0 mmol/L for those at higher risk, though this is individualised.
• HDL: above 1.0 mmol/L for men is generally desirable.
• Triglycerides: below 2.0 mmol/L is typical.

These are guides. Your doctor interprets them in the context of your age, family history, blood pressure, and other risk factors — not against a single cut-off.

Lifestyle that genuinely helps

• Regular aerobic exercise
• Reducing saturated fat and increasing fibre, vegetables and healthy fats
• Maintaining a healthy weight
• Not smoking
• Limiting alcohol

For many men, lifestyle change has a real effect. But it isn't always enough — and that's not a personal failure. Genetics play a large role, and some people will need medication despite doing everything right.

When medication is appropriate

If your overall cardiovascular risk is high, your doctor may recommend medication (most commonly a statin) alongside lifestyle change. This is a clinical decision based on your individual risk — never something to self-prescribe or refuse out of fear. A good doctor explains the reasoning, the benefits, and the small risks, and lets you decide together.

When to get checked

Adults should have a cholesterol check at least every two years, and more often if there's a family history of early heart disease or your levels have been high before. If you haven't had one recently, it's a straightforward thing to arrange.