Heart Health | Cholesterol | Generally what is cholesterol ?

cholesterol, ldl, hdl, heart disease, peripheral vascular disease, stroke, heart attack, angina

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What cholesterol is?

Cholesterol is a waxy substance, one of the wide range of fats (lipids) present in the body. It is essential to life.It is made in your liver and travels through your body in your bloodstream. The cholesterol in your blood is called blood cholesterol.

Cholesterol is an important component of all cell membranes, with about 25% of the body’s total cholesterol in the cell membranes of the nervous system, where it is a major component of the fatty sheaths that insulate nerves.
It also provides the basic skeleton for the synthesis of many hormones – the sex steroids, such as oestradiol and testosterone, the steroid hormones synthesised by the adrenal gland, for example cortisol, as well as the precursor of vitamin D (7-dehydrocholesterol).
Cholesterol is also an essential precursor of the bile acids and is therefore vital to fat digestion. An adult body contains about 150g of cholesterol.