The lifespan of white blood cells ranges from 13 to 20 days, after which time they are destroyed in the lymphatic system. When immature WBCs are first released from the bone marrow into the peripheral blood, they are called bands or stabs.. Leukocytes fight infection through a process known as phagocytosis.
9 Health Benefits of Sweet Potatoes. Not only are sweet potatoes readily available, inexpensive, and delicious, they have many other benefits for your health. 1. They are high in vitamin B6. Vitamin B6 helps reduce the chemical homocysteine in our bodies. Homocysteine has been linked with degenerative diseases, including heart attacks.
Potatoes are low in calories and a good source of vitamin C, complex carbohydrates and dietary fibre. Most of the nutritional value of a potato is found just under the skin, so it is best to cook potatoes with the skin on when possible. Potatoes of one variety or another are available all year round. Originally there were about 1,000 varieties, but over the years this number has declined to just a few hundred.