High Cholesterol in Dubai: Why It Happens and What to Do

High cholesterol — more precisely, elevated LDL and ApoB — is one of the leading causes of cardiovascular disease worldwide. In Dubai it turns up especially often, and not only in older patients: young people with no complaints at all are affected too.

Looking at total cholesterol alone is not enough. Modern medicine focuses on two values:

• LDL (low-density lipoprotein) — the so-called bad cholesterol;
• ApoB (apolipoprotein B) — a measure of how many atherogenic particles you carry.

ApoB is what reflects the real load on your arteries, and it is directly linked to the risk of heart attack and stroke.

How Cholesterol Turns Into Atherosclerosis

LDL particles transport cholesterol through the blood. Each of them carries ApoB — the protein that lets the particle enter the arterial wall. From there the mechanism runs as follows:

• LDL particles penetrate the arterial wall;
• they undergo oxidation;
• an inflammatory process is triggered;
• an atherosclerotic plaque forms;
• the plaque may rupture and cause thrombosis — a heart attack or a stroke.

Large meta-analyses show that lowering LDL by 1 mmol/L reduces the risk of cardiovascular events by roughly 20–25%. The higher the ApoB, the more atherogenic particles circulate and damage the arterial wall — even when LDL is formally within range.

Why It Is More Common in Dubai

• high-calorie diets and frequent eating out;
• an excess of simple carbohydrates;
• low physical activity — the heat and the lifestyle;
• chronic stress;
• insufficient sleep.

All of this drives insulin resistance and pushes ApoB up.

Why High Cholesterol Gives No Warning

Elevated LDL and ApoB have no specific symptoms. Patients usually feel perfectly well. Non-specific complaints occasionally appear — fatigue, reduced endurance, chest discomfort on exertion. More often, the first manifestation is already a complication.

Factors that raise the risk:

• excess weight;
• elevated glucose or insulin;
• hypothyroidism;
• a family history of early cardiovascular disease;
• arterial hypertension.

Should Children Have Their Cholesterol Checked?

Many people assume this is an adult problem. International guidelines (AHA, NHLBI) say otherwise:

• every child should have a lipid profile at 9–11 years;
• repeated at 17–21 years;
• earlier, from age 2, when risk factors are present.

Atherosclerosis begins long before any symptom appears, sometimes in childhood. Testing matters especially if a parent had an early heart attack, if the child is overweight, if metabolic abnormalities have been found, or if familial hypercholesterolaemia is suspected.

Which Tests You Actually Need

Basic values are not enough to assess risk. The core panel:

• LDL;
• ApoB — the most accurate risk marker;
• HDL;
• triglycerides;
• glucose, HbA1c;
• insulin;
• HOMA-IR — an index of insulin resistance;
• TSH.

Additionally — lipoprotein(a) where there is familial risk, and carotid ultrasound to assess plaque and intima-media thickness. One point worth remembering: ApoB can be elevated while LDL looks normal, and that is clinically significant.

Which Levels Are Considered Safe

Current guidelines (ESC/EAS) do not set one threshold for everyone — they scale it to the patient's overall cardiovascular risk.

Target LDL levels:

• low risk — below 3.0 mmol/L;
• moderate risk — below 2.6 mmol/L;
• high risk — below 1.8 mmol/L;
• very high risk — below 1.4 mmol/L.

Target ApoB levels:

• low risk — below 1.0 g/L;
• high risk — below 0.8 g/L;
• very high risk — below 0.65 g/L.

The higher the risk, the more aggressive the correction should be.

What to Do When the Numbers Are Too High

Lifestyle

• cutting sugar and refined carbohydrates;
• controlling saturated fats;
• increasing fibre intake;
• regular physical activity — at least 150 minutes a week.

Metabolic Correction

Reducing insulin resistance, normalising body weight and correcting hormonal disturbances. Insulin resistance raises ApoB and accelerates atherosclerosis.

Medication

• lowering LDL by 1 mmol/L reduces cardiovascular events by roughly 20–25%;
• statin therapy reduces heart attack risk by 25–35% on average, depending on baseline risk;
• more intensive therapy and drug combinations produce a stronger effect still.

Lowering LDL is one of the few interventions in medicine that directly reduces the risk of a heart attack and extends life.

Newer Injectable Agents

PCSK9 inhibitors lower LDL by 60% or more, reduce ApoB, and further reduce cardiovascular events. They are used in high and very high risk, when statins are insufficient or not tolerated, and in familial hypercholesterolaemia. This is not first-line therapy — it is one part of a personalised approach.

The principle of modern cardiology is simple: the lower the LDL, the lower the risk.

Common Mistakes

• looking only at total cholesterol;
• never measuring ApoB;
• ignoring insulin resistance;
• self-treating with supplements;
• postponing therapy because there are no symptoms.

The most dangerous mistake is underestimating the risk.

How This Works at Longevium

We assess overall cardiometabolic risk rather than a single number: an extended lipid profile, glucose metabolism with insulin and HOMA-IR, thyroid function, organ ultrasound, and a review of the results with a cardiologist. All of it sits inside the Longevity Day assessment.

High cholesterol is a controllable condition. But controlling it means looking at LDL and ApoB rather than at total cholesterol. If you live in Dubai and do not know your numbers, that is reason enough to start with bloodwork: timely diagnosis and properly chosen therapy substantially reduce the risk of heart attack and stroke.