Most people reach for a supplement bottle at the first sign of a sniffle. It's a familiar routine, and the global market for immunity-boosting products reflects just how widespread it is. Yet a ...

As summer fades and fall approaches, many people find themselves more susceptible to colds, flu, and other seasonal viruses. According to Dr. Mercola, a board-certified family medicine osteopathic ...

BETTENDORF, Iowa (KWQC) -The end of summer and beginning of fall can offer some pretty great weather--especially as temperatures moderate. But for many, high ragweed pollen brings on the misery at the ...

Sleep does more than fight fatigue. Doctors explain how a chronic lack of sleep weakens immunity, affects vaccine response, ...

Respiratory virus season typically peaks between December and February, so now is the time to get ready. "I am anticipating, as I think we all are, a rough respiratory season," said Dr. Sarah Nosal, ...

NBC News medical contributor Dr. Natalie Azar and TODAY health and nutrition expert Joy Bauer stop by Studio 1A to share tips for boosting your immune system and staying healthy during the frigid ...

As a dietitian, one of my favorite things about my job is showing people that supporting their health doesn’t have to mean complicated supplements or drastic lifestyle changes. Sometimes the best ...

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 ...

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 ...

Spring can see frequent COVID cases, since the effectiveness of fall vaccines can start to wane, and people tend to travel more as soon as the warm weather returns, which can increase exposure to ...