~RS~q~RS~~RS~z~RS~52~RS~)
Could our genes be tweaked to improve performance?
Cannot play media. Sorry, this media is not available in your territory.
Epigenetics could be used to change the way our genes function by turning them off or making them more active.
Anti-doping authorities have banned genetic manipulation, but Susan Watts investigates whether the technology could be used by rogue athletes and how it might improve their performance.
Newsnight is broadcast Monday to Fridays at 2240 BST on BBC Two.
Most watched/listened
-
Huge tornado hits Oklahoma City
-
How the Oklahoma tornado was formed
-
Cellar opened to reveal 'apocalypse'
-
'I was pretty lucky I suppose'
-
BBC crew finds collapsed bowling alley
-
'School roof ripped off by tornado'
-
'We thought we were dead'
-
'First crane egg in 400 years'
-
Will Israel bomb Iran?
-
Tunnelling ants could inspire robot design
-
A call from the top of the world
-
Real-life Dragons' Den hopefuls
-
Would-be robber struck by bus
-
Storm chaser captures Texas tornado
-
Celebrity gardeners at Chelsea Flower Show
