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, ...

A single blood protein can make aging stem cells act young again. As people age and notice changes like graying hair or reduced muscle strength, their immune system also undergoes shifts. One key ...

As the immune system weakens with age, researchers have found a way to temporarily boost its function by reprogramming liver cells to support T-cell development.

From vitamin C to your microbiome and mindset, the latest science of immunity is often counterintuitive. Here's how to give ...

A single signaling pathway controls whether immune cells attack or befriend cells they encounter while patrolling our bodies, ...

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 ...

Recent studies have shown that even if you feel healthy and fit, your immune system could be aging quicker than you think, which could increase the risk of infections and immune-related disorders.

As people age, their immune system function declines. T cell populations become smaller and can't react to pathogens as ...

Antibodies, which recognize viruses and proteins that the body has encountered before, have long gotten most of the credit for giving the human immune system a memory. Now, researchers at the ...

Foods that support immune health, like citrus fruits, fatty fish, and leafy greens, contain immune-boosting nutrients like zinc and vitamins C, D, and E.

A person’s menstrual cycle may affect their immune system’s response, causing fluctuations throughout the month. The menstrual cycle involves a series of changes in hormone levels and structures ...