Age and the functions of the immune system
Your immune system is your body’s natural defence. It helps your body to fight and get rid of malignant substances such as bacteria, viruses, cancer cells or foreign tissues. The power of your immune system is represented by its ability to produce cells specialized in marking, surrounding and destroying potential threats. But it’s important to know that the functioning of your immune system changes over time. When a baby is born, its immune system is immature. It then develops and learns to fight off pathogens into adulthood, and declines with old age1. Read on to find out how your immunity changes over time.