LDL is the primary contributor to arterial-clogging plaque. HDL is effective at removing excess cholesterol from the blood.
Heart diseases are the leading cause of death in a number of countries. Atherosclerosis causes the constriction of the blood vessels that supply the heart with blood, leading to heart disease. Gradually, fatty deposits (or plaque) accumulate on the interior of artery walls, reducing the space through which blood may travel to the heart.
Cholesterol is an essential component of all cell membranes and is necessary for numerous metabolic processes. It is produced in the liver by the body. Cholesterol-containing blood lipids (fats) include high-density lipoprotein (HDL) and low-density lipoprotein (LDL). LDL ('bad') cholesterol can cause the formation of plaque in the arteries, whereas HDL ('good') cholesterol helps eliminate cholesterol from the body and makes it more difficult for plaque to form.
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I am not sure what you asking, but since Justin doesn't want to go to the graduation party because he know he going to be embarrass from not gradating with the rest of his friends.
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils. Hope this helps.
What is best to do in the situation is to have the bystander call 911 while you start CPR. It is best to do it immediately to ensure that the infant is receiving circulation and oxygen.
