In short, fiber is material that cannot be digested, and it acts like a sponge. It draws water from its surroundings, making it swell, which softens stool and adds bulk to it, which in turn helps it pass. Like coffee, some kinds of fiber (like beans) can contribute to constipation, so always drink plenty of water.
The immune system can distinguish between normal, healthy cells and unhealthy cells by recognizing a variety of danger cues called danger-associated molecular patterns (DAMPs). Cells may be unhealthy because of infection or because of cellular damage caused by non-infectious agents like sunburn or cancer.he immune system can distinguish between normal, healthy cells and unhealthy cells by recognizing a variety of danger cues called danger-associated molecular patterns (DAMPs). Cells may be unhealthy because of infection or because of cellular damage caused by non-infectious agents like sunburn or cancer.
The CD4 cells (also called T-helper cells) are an important part of the immune system because they fight germs and infections. HIV attacks CD4 cells and reduces the number of them in your body. Without treatment, HIV slowly weakens the immune system, making it harder for your body to fight off illness or infection.