By Sean Green
 Cholesterol is an essential part of life. It is produced by the liver which synthesises about 1 gramme per day. This substance is classified as a sterol (a combination of steroid and alcohol).
Cholesterol forms an essential component of cell membranes of mammals.It is the main precursor of vitamin D and of the steroid hormones such as cortisol and aldosterone and the sex hormones (oestrogens, testosterone and progesterone). It also is essential in the formation of the myelin sheath which wraps around nerves and helps to conduct nerve impulses.
An excessively high cholesterol, however is associated with atherosclerosis, which is essentially a narrowing and clogging up of arteries with a complex of cholesterol in a scaffolding of scar tissue. This narrowing of blood flow through arteries has the most significant effect in the heart (where it may cause heart attacks) and in the brain (where it is associated with strokes).
According to the lipid theory, raised levels of total cholesterol, as well as LDL cholesterol (commonly called bad cholesterol), as well as low levels of HDL cholesterol (commonly called |
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By Julian Slowe
 In a man's life, there will come a time when he has to take a trip down check-up lane for his annual medical examination. Although not everyone is taking part, it is quite important to have your doctor see how your health is doing. Personal health care examination can decrease a person's chances of getting sick or acquiring a disease because of early diagnosis. There would be other reasons why people would be advised or would want to go to the physician:
1. Assessment of any risk that can contribute to future medical problems. Sometimes people can be so hardheaded and would not go to the doctor because they would argue about not feeling anything. Bad news is, the moment an illness strike, it may be because it's getting serious. Earlier diagnosis equates earlier treatment.
2. Screen for present diseases. If you are already experiencing something painful or odd going in your body, it is a must to let the doctor see it immediately no matter how little the pain is or how small the inconvenience is contributing to your body. |
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