Add Yahoo as a preferred source to see more of our stories on Google. Could a clove of garlic a day keep the doctor at bay? We asked an expert to delve into the science. (Getty Images) (Anna Mardo via ...

Everyone knows that the immune system is responsible for fighting off illnesses, but you might not know that it's doing a lot ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Feeling sneezy? You’re not alone. Americans get an average of two to three colds per year, according to ...

No matter how healthy you are, you'll probably end up catching a cold or two this year. The common cold is caused when one of more than 200 viruses invades the cells of your upper respiratory tract.

A new study helps explain why you get sick from a common cold virus. The secret, it turns out, lies inside your nose. Winter brings a surge of respiratory illnesses, including rhinoviruses, the most ...