Cholesterol is a waxy substance found in your blood and in your cells. Your liver makes most of the cholesterol in your body. The rest comes from foods you eat. Cholesterol journeys in your blood bundled up in packages called lipoproteins.
Cholesterol can be found in two kinds:
Low-density lipoprotein (LDL) is the "bad," unhealthy type of cholesterol. LDL cholesterol can build up in your arteries and form fatty, waxy deposits called plaques.
High-density lipoprotein (HDL) is the "great," healthy sort of cholesterol. It transfers excess cholesterol out of your arteries to your liver, which removes it from your body.
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Cholesterol itself isn't bad. Your body needs some cholesterol to make hormones, vitamin D, and gastrointestinal fluids. Cholesterol also assists your organs work correctly.
Yet having too much LDL cholesterol can be a problem. High LDL cholesterol in time can harm your arteries, contribute to heart problem, and increase your risk for a stroke. Getting your cholesterol checked at regular doctor check outs and decreasing your heart problem danger with diet, workout, way of life modifications, and medication can help decrease issues connected with cardiovascular disease and improve lifestyle.
Cardiovascular and circulatory systems
Blocking them and making them less flexible when you have too much LDL cholesterol in your body it can construct up in your arteries. Hardening of the arteries is called atherosclerosis. Blood does not flow also through stiff arteries, so your heart has to work more difficult to push blood through them. With time, as plaque develops up in your arteries, you can establish heart problem.
Plaque buildup in coronary arteries can interrupt the circulation of oxygen-rich blood to your heart muscle. This might cause chest pain called angina. Angina isn't a cardiac arrest, however it is a momentary interruption of blood circulation. It's a caution that you're at danger for a cardiac arrest. A piece of plaque can eventually break off and form a clot or the artery might continue to become narrowed which can totally block blood circulation to your heart, leading to a cardiac arrest. If this procedure happens in the arteries going to the brain or within the brain it can cause a stroke.
Plaque can also obstruct the flow of blood to arteries that supply blood to your digestive tract, legs, and feet. This is called peripheral arterial illness (PAD).
Your body's hormone-producing glands use cholesterol to make hormones such as estrogen, cortisol, and testosterone. Hormonal agents can also have an effect on your body's cholesterol levels. Research study has actually revealed that as estrogen levels rise during a lady's menstrual cycle, HDL cholesterol levels also go up, and LDL cholesterol levels decline. This might be one reason a lady's risk for cardiovascular disease increases after menopause, when estrogen levels drop.
Decreased production of thyroid hormone (hypothyroidism) leads to an increase in overall and LDL cholesterol. Excess thyroid hormone (hyperthyroidism) has the opposite effect. Androgen deprivation therapy, which decreases levels of male hormones to stop prostate cancer development, can raise LDL cholesterol levels. A shortage of development hormonal agent can also raise LDL cholesterol levels.