The immune system defends the body from invaders such as viruses, bacteria, and foreign bodies. Find out how it works, what can go wrong, and how to boost immune health.

Mitochondria have primarily been known as the energy-producing components of cells. But scientists are increasingly ...

Your immune system is like an incredibly sophisticated security team, constantly patrolling your body for threats and neutralizing them before they can cause harm. When it’s working properly ...

The innate immune system is the body's first line of defense against pathogens and foreign substances. An essential component ...

The immune system has two main arms: innate and adaptive. The innate immune system recognizes broad molecular patterns, such as molecules that certain RNA viruses generate as they replicate. It is ...

Boost your immune system to prevent flu, colds, and other illnesses with yogurt, chicken noodle soup, and other delicious, everyday foods.

How your immune system really ages — research shows aging brings adaptation not decline and reveals ways to maintain immune strength.

Lupus is a type of autoimmune disease. In an autoimmune disease, something goes wrong in the body’s immune system, causing it to harm healthy organs, tissues, and cells. “Auto” means “self” — so if ...

In some cases, headaches can be related to the immune system. For example, it could be vasculitis, which is inflammation of a blood vessel caused by an infection or autoimmune disease. 7.

A research team at the University of Münster has investigated for the first time how the confrontation of bacteria with hosts ...

Like the rest of your body, your immune system ages, too. This contributes to higher rates of illnesses such as respiratory infections. Scientists haven’t found strong data to support any one ...