When a patient is facing certain cancers or an immune condition, clinicians turn to white blood cells for clues about the ...

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, ...

Every day, your immune system performs a delicate balancing act, defending you from thousands of pathogens that cause disease while sparing your body’s own healthy cells. This careful equilibrium is ...

I’ve noticed I’m getting more colds as I get older. What can I do to give my immune system a boost? Like the rest of your body, your immune system ages, too. This contributes to higher rates of ...

Additives like aluminum in vaccines can amp up their effectiveness, creating just the right balance of inflammation to prevent disease. In this illustration, an mRNA vaccine messages cells to make the ...

You might know your immune system as the built-in, around-the-clock surveillance system primed to keep nasty germs out and swiftly kick to the curb any that do manage to sneak in. It’s a system primed ...