Air Pollution and Asthma

Dirty air can trigger asthma attacks and other breathing problems too. Scientists have linked air pollution two increased rates of heart attacks, strokes, many kinds of cancer,. dementia, parkinson's disease, miscarriages, premature birth and much more. Even if you don't live near an oil refinery, just walking down a busy city street or going to school next to a highway can increase your chances of all kinds of health problems. Here's beth gardener on the ted stage....