Our immune system consists of two types: nonspecific and specific. Nonspecific immunity, also known as innate immunity, works to combat infections without the need for antibodies. Specific immunity, on the other hand, works to attack specific germs. These systems involve different types of white blood cells and their interactions. Our skin is the biggest organ in our immune system, serving as a physical barrier for many other organs. However, unlike the innate immune system, our adaptive immune system is specialized to attack specific germs.
Innate immunity – The immune system’s first line of defense – recognizes and responds to general threats. This type of immune system is responsible for fighting infections that have already penetrated the skin. In Ayurvedic texts, the body’s innate immune system is correlated with the Sahaja Bala. In contrast, acquired immunity (also called adaptive immunity) involves exposure to pathogens and designing a strategic response to fight off these invaders.
Primary immune deficiency – Primary immune deficiencies are not inherited. This disease increases a person’s risk of contracting autoimmune disease, cancer, and other diseases. Acquired immunodeficiency syndrome (AIDS) is caused by untreated HIV infection and makes the patient vulnerable to life-threatening infections. In addition to immune deficiencies, cancer patients often take immunosuppressive drugs to suppress their immune systems. Older adults have poorer immune response than healthy adults.