Winter Hazard: Carbon Monoxide Poisoning

When winter storms hit and the thermometer drops, homes are buttoned up tight as people try to stay warm. Unfortunately, it's also a time when cases of carbon monoxide poisoning rise. The invisible, odorless gas claims about 500 lives each year. Symptoms may include headache, dizziness, vomiting, chest pain and confusion.

If you or someone you're with develops signs or symptoms, leave the area and get fresh air immediately. Call 911 for emergency help. Depending on the degree and length of exposure, victims may suffer debilitating injuries, so prompt medical attention is important.

"It's very important treatment be tailored to the individual because, even though there are common effects of carbon monoxide poisoning, nobody’s injury or impairment is exactly the same," says Mayo Clinic's Dr. Allen Brown, M.D., an expert on physical medicine and rehabilitation after brain injuries.