December 12, 2008
Hidden Hazards
Could pollutants trigger Alzheimer's and Parkinson's diseases?
The symptoms of Alzheimer's or Parkinson's diseases are frightening: They include memory loss, change of personality, gait disturbance, and speech problems.
Worse is the caprice with which the diseases appear to choose their sufferers. Seemingly healthy people gradually become completely unlike themselves. Although scientists have discovered genes that increase the risks of both diseases, the genes account for just a
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