Dana White discusses with Sky News Australia Piers Morgan how biologist Gary Brecka turned things around for him after he was told he had around 10 years left to live.

"To say this guy saved my life is the understatement of the century," Mr White told Sky News Australia Piers Morgan.

"As I got to the ten-week point I started to feel like I was in my thirties again.

"And now I have been with him for a year and a half and I’m not kidding you, I feel like I’m in my twenties.

"My level of productivity at work, my cognitive, my physical, I mean everything."