There is a common thread between symptoms and how long they go on. Want to know how many days a cold should last? These common cold stages should help you work out where you are in the life cycle ...

Other warning signs of lung cancer include a persistent cough or hoarse voice, changes in a long-standing cough, unexplained ...

as it can result in different symptoms — and different risks — at different stages of life. Whooping cough may initially look like a cold before becoming more serious one to two weeks after ...

Cold and flu season is in full swing ... wheezing, the CDC says. Symptoms usually happen in stages and in young infants may only present as increased irritability, decreased activity and ...