Dirty Air Causes Asthma Attacks and Other Breathing Problems

Scientists have linked air pollution two increased rates of heart attacks, strokes, many kinds of cancer and dementia. One particularly vivid study really drove the dangers home for me. A narro pathologist examined puppies who lived in badly polluted mexico city. She found the same markers in their brains that doctors use to diagnose alsheimer's disease in humans. The dog's youth made the discovery particularly disturbing....