(HealthDay News) -- If the air inside your home is stagnant and doesn't get replaced very often, the indoor pollution that results could worsen symptoms of allergies, asthma, or other chronic lung problems.

(HealthDay News) -- Lead -- a highly toxic metal -- may lurk in your home, your workplace or at your child's school.

THURSDAY, Sept. 20 (HealthDay News) -- A new study confirms that a once-promising discovery linking prostate cancer to a retrovirus called XMRV was the result of laboratory contamination.

FRIDAY, Sept. 21 (HealthDay News) -- Explosions are the main cause of spine injuries among wounded U.S. military personnel, a new study finds.

FRIDAY, Sept. 21 (HealthDay News) -- When a 63-year-old man went to a hospital in Switzerland to report a buzzing in his ear, the staff got more than they bargained for when they looked inside. A tick was attached to his eardrum, and it possibly got there with the help of a friendly feline.

THURSDAY, Sept. 20 (HealthDay News) -- The number of people who survive surgery when general anesthesia is used has improved dramatically over the past 50 years, Canadian researchers report.