He is one of the UK's best known scientists and on Monday Professor Robert Winston delivered the inaugural Beardmore Lecture to mark ten years of the Golden Jubilee Hospital in Clydebank.
The question he asked was can we survive the 21st century?
He spoke to Scotland Tonight after his speech to discuss the health threats facing us in 2012 and beyond.
More About Scotland Tonight
- STV looks at what will happen if Scotland votes No to independence
- Scotland Tonight: Nicola Sturgeon and Johann Lamont head-to-head
- Alistair Darling quizzed on pledge of more powers after a No vote
- Alex Salmond grilled on cost of corporation tax cuts after Yes vote
- Ed Miliband urges Labour voters to 'show solidarity' and vote No
- Forth Road Bridge celebrates 50th anniversary with festival of events
- Church of Scotland: 'Respectful dialogue' needed in referendum