having diabetes or high blood pressure (hypertension).smoking – a chemical called acrolin, found in cigarettes, stops HDL transporting cholesterol from fatty deposits to the liver, leading to narrowing of the arteries (atherosclerosis).an unhealthy diet – in particular, eating high levels of saturated fat.Many factors can increase your chances of having heart problems or a stroke if you have high cholesterol. This can cause pain in your chest or arm during stress or physical activity ( angina). Your risk of developing coronary heart disease also rises as your blood's cholesterol level increases. It also increases the risk of a blood clot developing somewhere in your body. This is because cholesterol can build up in the artery wall, restricting the blood flow to your heart, brain and the rest of your body. transient ischaemic attack (TIA) – often known as a "mini stroke".narrowing of the arteries (atherosclerosis).Why should I lower my cholesterol?Įvidence strongly indicates that high cholesterol can increase the risk of: The recommended cholesterol levels in the blood vary between those with a higher or lower risk of developing arterial disease. The amount of cholesterol in the blood, both HDL and LDL, is measured with a blood test. For this reason, LDL is known as "bad cholesterol". If there's too much cholesterol for the cells to use it can build up in the artery walls, leading to disease of the arteries. Low-density lipoprotein (LDL) carries cholesterol to the cells that need it. For this reason, HDL is referred to as "good cholesterol" and higher levels are better. From there it's either broken down or passed out of the body as a waste product. High-density lipoprotein (HDL) carries cholesterol away from the cells and back to the liver. When the two combine, they're called lipoproteins. About cholesterolĬholesterol is carried in your blood by proteins. High cholesterol, on its own, doesn't usually cause any symptoms but increases your risk of serious health conditions. Having an excessively high level of lipids in your blood (hyperlipidemia) can have an effect on your health. There are 2 main sources of the cholesterol in your blood: Cell membranes, hormones and vitamin D are created by your body using cholesterol. It's vital for the normal functioning of the body. Cholesterol is a fatty substance known as a lipid.
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