The main function of human red blood cells or erythrocytes is usually to carry oxygen to several areas of the body. Their natural beautiful red colors comes from a biomolecule called hemoglobin which binds oxygen and occupies the cytoplasm of the cell. Unlike most human cells, red blood cells don't have nuclei or other organelles (the components or subunits of many cells). Their biconcave appearance can clearly be seen with this image which was captured using a scanning electron microscope (SEM). Looking like doughnuts without holes, they're flat and depressed inside center and also have a dumbbell-shaped cross-section. This unusual form is very important for his or her function because it is great for their smooth passage through minor and major veins. We all know that we should make sure that we get the right amount of vitamins, minerals and nutrients each day, but in reality with our busy lifestyles today this is easier said than done. Many people take a nutritional supplement, the difficulty is knowing if what we are taking actually has enough of what we need in it or that our body will actually absorb the vitamins etc correctly. With many pills and capsules, any benefits can be lost long before they get to the right parts of the body and in some cases your body may only absorb as little as 5% of the amount of the mineral or nutrient quoted on the bottle. That got me thinking, the Underbelly series is dependant on actual life incidents, people and places. The third series is situated in the middle of Sydney's Kings Cross area and sees cops, drug deals and night club owners all living from each others pockets. The uneasy alliance is tolerated for the knowning that no person gets killed and everyone gets paid. Things learn to drop hill when two police women join police officers team. One is raped through the cops and also the other, Debbie Webb, turns whistle blower then again the gravy train flows all the way to the top of the New South Wales the police and he or she is ostracized. Washing and cleaning the genital area before and after coitus with unscented mild substance that may be prescribed to you can help as well.