Steve Jobs once said: "The most precious resource we all have is time." 

For most of history, the average human life expectancy has been about around 70 years. Although average life expectancy has been rising for years, this is because more of us make it that far and many beyond. Fewer of us are dying at birth, in childhood, in the midst of raging battle or being mauled to death by wild animals. Take out those threats and an average human is capable of a 70th birthday.

And now, with breakthroughs in our understanding of genetics and billions of dollars being poured into life sciences research, we may find ways to extend our lives, maybe to even double that number, in the next few decades. 

On this week's Beyond the Headlines host Kelsey Warner looks at the future of ageing and longevity.