What are White Blood Cells

White blood cells, also known as leukocytes, are a vital part of the immune system. They are responsible for protecting the body against harmful bacteria, viruses, and other foreign substances. There are different types of white blood cells, each with its own unique function. The most common type is the neutrophil, which is responsible for attacking and destroying bacteria. Another type is the lymphocyte, which produces antibodies to fight infections and foreign substances. White blood cells are produced in the bone marrow and circulate in the bloodstream. When the body is exposed to an infection or other foreign substance, the white blood cells will migrate to the infected area to fight off the threat. In order to effectively fight off infections and foreign substances, white blood cells must be healthy and functioning properly. A healthy diet and regular exercise can help maintain healthy white blood cells and a strong immune system. It is important to note that white blood cells do not fight off every infection or foreign substance. Sometimes the body may need additional help, such as antibiotics or other medications, to fight off an infection. Overall, white blood cells play a crucial role in maintaining a healthy immune system and protecting the body against harmful substances.