Better measures of the distribution of scores are the variance and standard deviation. The variance (2) is the sum of the squares of the deviations of the individual test scores (xi) from the mean () divided by the number of scores (n). The standard deviation () is the square root of the variance.
Reducing triglyceride levels is one of the main mechanisms by which fish oil omega-3 fatty acids improve cardiovascular health. With regards to cholesterol, fish oil omega-3 fatty acids can increase the level of âgoodâ cholesterol while lowering âbadâ cholesterol. However, this relationship is not straightforward. In fact, fish oil can raise LDL cholesterol in people with high blood triglyceride levels.
If your doctor tells you that you need to lower your cholesterol, plant sterols and stanols can be useful. But, although plant stanols and sterols do lower LDL cholesterol, they probably do not reduce heart attacks or strokes. Fish oil contains two âfattyacids,â EPA and DHA. These are also known as omega-3 fatty acids.