Scientists are very careful about throwing around words like 'breakthrough' or 'cure'—especially when it comes to diseases like ALS that are so devastating to their victims. But the past few months have seen an incredible sense of optimism around research being done by a team at Western University, who seem to have found a way to prevent the cell death that is the core of the disease.

How did they make this discovery? How does it work so far in experiments? And why is this step turning heads around the entire medical world?

GUEST: Dr. Michael Strong, professor of neurology at Western University's Schulich School of Medicine and Dentistry; Arthur J. Hudson Chair in ALS Research

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