This is because they can be vectors for infectious diseases, such as sexually transmitted diseases or blood-borne diseases. Universal precautions and safer sex practices try to avoid exchanges of body fluids. Body fluids can be analyzed in medical laboratory in order to find microbes, inflammation, cancers, etc.
Eat oatmeal as a source of B vitamins. A breakfast staple, oatmeal has long been part of American cuisine. Oatmeal offers a number of nutritional benefits -- it provides a source dietary fiber as well as essential minerals including phosphorus, potassium and iron.
The term oatmeal sometimes refers to porridge made from the bran or fibrous husk as well as the oat kernel or groat. Rolled oats are often used as a key ingredient in granola breakfast cereals (in which toasted oats are blended with sugar and/or nuts and raisins) and granola bars.