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'''Cholesterol''' is a waxy, fat-like substance that occurs naturally in all parts of the body. There is actually a substance called cholesterol, but what is commonly called „cholesterol“ is a group of cholesterol-related substances called lipids, of which two are most important: „bad cholesterol“ = „low-density lipids“ (LDL) and „good cholesterol“ = „high-density lipids“ (HDL).
'''Cholesterol''' is a waxy, [[fat]]-like substance that occurs naturally in all parts of the body. There is actually a substance called cholesterol, but what is commonly called „cholesterol“ is a group of cholesterol-related substances called lipids, of which two are most important: „bad cholesterol“ = „low-density lipids“ (LDL) and „good cholesterol“ = „high-density lipids“ (HDL).
Cholesterol is not a foreign, harmful substance, whose presence in the body should be avoided. It is an excessive concentration of cholesterol what is harmful. We may be afraid of eating eggs or meat due to the cholesterol presence there, but there are good reasons why cholesterol is in eggs and meat, in the first place. Cholesterol is a component of every human cell membrane, and it is necessary precursor for bile and for steroid hormones. It also participates in transmission of signals by nerves. High cholesterol may even protect against infections <ref>http://qjmed.oxfordjournals.org/content/96/12/927.full?ijkey=172mwKXqzgmtE&keytype=ref
Cholesterol is not a foreign, harmful substance, whose presence in the body should be avoided. It is an excessive concentration of cholesterol what is harmful. We may be afraid of eating eggs or meat due to the cholesterol presence there, but there are good reasons why cholesterol is in eggs and meat, in the first place. Cholesterol is a component of every human cell membrane, and it is necessary precursor for bile and for steroid hormones. It also participates in transmission of signals by nerves. High cholesterol may even protect against infections <ref>http://qjmed.oxfordjournals.org/content/96/12/927.full?ijkey=172mwKXqzgmtE&keytype=ref
==References==
==References==
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[[Category:Heart Diseases]]
[[Category:Medicine]]
[[Category:Medicine]]