Medically reviewed by Farah Khan, MD Key Takeaways Taking vitamin C supplements can boost your immune system.Exercise regularly to help your immune system stay strong.Eating citrus fruits can reduce ...

Your immune system is your body’s built-in defense network, working nonstop to protect you from bacteria, viruses, and other harmful invaders. Your immune ...

Chronic stress doesn't just affect your mood, it can weaken immune defences, increase inflammation, and leave the body vulnerable to illness. Experts explain the biological link and outline practical ...

Learn whether eating Sumo Citrus oranges can support your immune system, how vitamin C works in the body, and how much you ...

In the following weeks, there will likely be an increase in respiratory illnesses such as influenza, COVID-19 and RSV. Now is an excellent time to strengthen your immune system to help combat those ...

Regulatory T cells (red) interact with other immune cells (blue) and modulate immune responses. National Institute of Allergy and Infectious Diseases/NIH via Flickr Every day, your immune system ...

There’s a lot of truth to the adage “food is medicine.” While medications are certainly important and necessary, there is a direct relationship between diet and immune health. Nutrients both directly ...

We often think about our immune system when a breakdown happens—AKA the sniffles start. Sick happens, and nothing can prevent anyone from never, ever coming down with an illness. However, it is ...

I am lying under a blanket, feeling rough, staring at a bowl of oranges. Every fibre of my being is urging me to devour the lot. I can hear my mum – and medical friends at university – insisting that ...

Gearing up for a race may affect your immune system, but you can stay healthy with these tips until you arrive at the start ...

The body’s defenses may be mildly lowered for about 1 to 4 weeks after a single steroid shot into a joint or near your spine. In some people, particularly with higher doses, this effect may last up to ...

Sat, 24 January 2026 at 2:56 pm UTC The immune system is the body’s natural defense network that helps to keep you healthy from things like bacteria, viruses, and parasites. It’s a complex network of ...