Better Health & Beyond — Immune System

Several key healthy lifestyle habits can help keep your immune system working to stave off illness and infection.

It’s your immune system’s job to defend your body against illness and disease. The complex system is made up of cells in your skin, blood, bone marrow, tissues, and organs that — when working the way they should — protect your body against potentially harmful pathogens (like bacteria and viruses), and limit damage from noninfectious agents (like sunburn or cancer).).