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, ...

Tuberculosis, caused by the bacterium Mycobacterium tuberculosis (Mtb) kills upwards of 1.6 million people a year, making it one of the leading causes of death by an infectious agent worldwide -- and ...

Novo Nordisk and Eli Lilly say GLP-1 drugs slowed aging clocks, but the data are early and unreviewed. Here is what patients should know. A study of 1.4 million women links pregnancy complications to ...

It starts with a sneeze. Someone on the subway didn't cover their mouth and now a cloud of invisible invaders hangs in the air. Before you even step off the train, your immune system has already begun ...

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 ...

Planes, trains, boats, automobiles and even feet. During the past decades and centuries, global travel and human migration have made all of us more worldly - from our broadening awareness of the world ...

We sometimes hear about the benefits of “boosting” our immune system, but what we really want to do is support our immune system on an ongoing basis. People often think of the immune system as ...