Unfortunately, high cholesterol doesn't cause symptoms. In later stages of atherosclerosis, though, you may suffer angina -- severe chest pain from lack of blood flow to the heart. If an artery gets totally blocked, a heart attack results. Low-density lipoproteins (LDL). 2  This is the bad cholesterol, the main cause of plaque build-up, which increases your risk for heart disease. 3  In general, the lower the number, the better. 4  But LDL cholesterol is only one part of a larger equation that measures a personâs overall risk of having a heart attack or stroke.
Depending on the species, catfish can live from eight to 20 years though the Mekong giant catfish lives more than 60 years. Almost 3,000 species of catfish have been catalogued throughout the world, but it is thought that as many as 4,500 exist. Continue Reading
They live an average of 2 to 3 years. Some species can live up to 7 to 9 years, and there are even some species that live as long as 35 years. See the Related Link below.They â¦ live for a long time because its their nature.22 people found this useful.nswered by The Community. Making the world better, one answer at a time. The common crayfish (crawfish) lives about 2 or 3 years, but individuals may live to be as old as 8 years. Some rare species can live as long as 20 years.