Psychologists who study psychometrics (the science of psychological test and measurements) identify two categories of factors that affect the reliability of psychological tests. The first category is factors related to the construction of the tests, these are called systemic errors and are built into the test.

The A1c blood test is one of the laboratory tests used to diagnose diabetes and an important measure of average blood sugar levels in someone who has diabetes.

High cholesterol has various effects on your body, one of which is fatigue. When plaque builds in the walls of your arteries, it leads to conditions such as coronary heart disease, CHD, and coronary microvascular disease, CMD.

Cholesterol and cholesterol esters are more similar than they are different; however, when considering their similarities several distinctions begin to arise. Cholesterol esters are derived from cholesterol itself.

With heart disease reaching near epidemic proportions in the U.S., health care professionals are urging patients to reduce their risk factors through exercise and a diet low in cholesterol and saturated fats. The U.S.

High cholesterol is associated with increased risk for heart disease, the number-one killer of women and men in the United States. Going to your doctor for a routine blood test will help you learn if you have high cholesterol.

The guidelines for total cholesterol are the same for adults of all ages. Total cholesterol that's less than 200 mg/dL is desirable because it is associated with reduced heart disease risk. At 200 to 239, heart disease risk is borderline high, and anything above 239 mg/dL carries a high risk for heart disease.

Cholesterol, a waxy substance found in some foods and manufactured in the body, is necessary for the production of certain hormones, bile and vitamin D. Too much cholesterol, especially LDL cholesterol, can lead to a buildup of fatty deposits on the walls of the arteries and interfere with blood flow to the heart.

Physical development and growth are influenced by both genetic and environmental factors. For example, malnutrition can delay a child’s physical development significantly.

If the laboratory results of your most recent blood work revealed a total cholesterol level of 225 mg/dL, your doctor will probably tell you that 225 is higher than she prefers to see, even though a total cholesterol level of 225 is just 25 points over what doctors consider safe.

Triglycerides are a type of blood fat that the body uses for energy. Hypertriglyceridemia (high triglycerides) and hypercholesterolemia (high cholesterol) are collectively known as lipid disorders.

If you are concerned about your cholesterol, heart disease or other chronic disease, consider adding oat bran to your diet. Oat bran is a high-fiber food that can lower your cholesterol and provide a number of other health benefits. To get the most health benefits from oat bran, make it a part of your daily diet.