During the recent Covid-19 pandemic, the rate of serious illness and death was jarringly high in older populations. Why? Weakening immune systems — as we age, we become more vulnerable to infections, ...

Once we hit our fifties, many people notice that bouncing back from a cold or shaking off fatigue takes a little longer than it used to. That’s because our immune system naturally changes with age, ...

The human immune system is one of the body’s most complex and fascinating defence mechanisms. It works tirelessly to protect us from infections, bacteria, viruses, and other harmful invaders. While ...

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 ...

Scientists generally agree that eukaryotes, the domain of life whose cells contain nuclei and that includes almost all multicellular organisms, originated from a process involving the symbiotic union ...

Recent immunology research has unveiled the complex relationship between vitamin D and immune system function. This vital nutrient is involved in the development and function of the immune system, ...