He was the Director-General of Health leading the country through the hardest health challenges New Zealand has faced in modern history.
Today, he's a Professor at the University of Auckland's School of Population Health.
LISTEN ABOVE
The Health Hub
333 clip(s)
Allyson Gofton: Chef discusses how to feed the family without leaving waste
Dr Michel Neeff: The countless thing that harm your hearing - and it's not noise
David Letele: Finding the right kind of motivation