The smell test that could stop Parkinson's in its tracks

The smell test that could stop Parkinson's in its tracks

Comment: In the Western world over the past 60 years, we’ve added about 15 years to our average lifespan. That’s a success story. The downside is that as the population lives longer, neurological diseases have become a major problem globally. The brain is the most complex organ in the body, and many people now live long enough to experience that remarkable organ starting to fail. One in five New Zealanders will face a disease affecting their bra…