Foods like citrus fruits and broccoli may boost the immune system and help you to fight illness. Learn which immunity-boosting foods to add to your diet.

A new study found that daylight boosts your immune system by helping infection-fighting cells (neutrophils) work more effectively during the day. Researchers found that your immune cells have their ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Dermatologists call it SALT, short for skin-associated lymphoid tissue, and it’s your outer layer's built ...