Blood contains four parts: red blood cells, white blood cells, plasma, and platelets. The blood cells and platelets are suspended in the plasma. Blood comes from inside your bones. In the bone marrow, to be exact!
It is essential that you always have enough blood in your body. If you lose too much blood you will require a transfusion. It is useful to know what your blood type is. Knowing your type is necessary for receiving or donating blood.
Your circulatory system is susceptible to certain conditions. For example, irregular blood pressure, blood clots and blood poisoning all affect the circulatory system. Low blood pressure and high blood pressure are the most common ones. A healthy diet of high-iron and low-sugar foods can help you avoid these conditions. In addition to this, regular exercise can help regulate your blood pressure.