When did Catalyst Season 20 Episode 5 air?
Catalyst Season 20 Episode 5 aired on August 20, 2019.


Catalyst is Australia's premier science investigation series. Each week the team brings you stories from Australia and around the world, meeting scientists at the forefront of discovery.

Dr Sarah McKay uncovers the revolutionary new science that promises to keep your brain healthy into old age - and uncovers the drugs that hope to defeat many of the diseases of ageing.
Direct answers for episode-level questions and details.
Catalyst Season 20 Episode 5 aired on August 20, 2019.
This episode runs for approximately 30 minutes.
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