Long after the acute infection fades, pieces of the virus behind COVID-19 can linger in the body and quietly sabotage the ...

Although winter is coming to a close, cold and flu season is still threatening our immune systems. Staying healthy is a marriage of several simple practices, according to Dr. Roger Seheult, a critical ...

Add Yahoo as a preferred source to see more of our stories on Google. Oscar Wong/Getty Images When the days get shorter and temperatures drop, there’s nothing we’d rather do than stay in bed. But the ...

Know how the immune system influences fertility, embryo implantation, and early pregnancy success, with expert insights on ...

Bacteria in the human gut can directly deliver proteins into human cells, actively shaping immune responses. A consortium led ...

Pancreatic cancer may evade the immune system not by accident but by actively switching off internal danger signals through ...

The end of winter is often a particularly challenging time for our health. Although it may feel as though the cold, grey days–and the associated bugs–are drawing to a close, this is often the time of ...

Invisible particles in the air are not just irritating our lungs, they are quietly rewiring the immune system that is ...

The fall brings cooler weather, autumn leaves and, unfortunately, the flu. According to the Centers for Disease Control and Prevention, seasonal flu occurs year-round in the United States, but usually ...

Heart failure is a serious and long-lasting condition that affects millions of people around the world. It often begins after the heart muscle is damaged, most commonly by a heart attack. When this ...