Almost 10 years after medicinal cannabis was legalised in Australia, driving laws in many parts of Australia haven't changed. So how does cannabis affect your ability to drive, and do laws need an update? 

And we hear from tourism operators on WA's Ningaloo Reef who feel forgotten and "out of sight" after mass coral death from this year's marine heatwave. 

Plus, we unpack how weight loss drugs are changing the global business of how we eat, after a pharmaceutical company reached a $1.5 trillion valuation.

Listen now: 

01:07 - Should you be able to drive on medicinal cannabis? 

12:59 - The Ningaloo's "underwater bushfire"

24:23 - The big business of weight loss drugs

Guests: 

• Dr Danielle McCartney, Associate Lecturer in Pharmacology, University of Sydney
• Dr James Gilmour, Experimental Scientist, AIMS
• Alan Kohler, finance journalist, ABC

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