A new technology that reads brain-waves to allow users to change TV channels with their mind has been developed in the UK.

The 'happiness blanket', which is woven with fibre optics, uses neuro-sensors to measure a person's brainwaves and changes colour.

Called biotrackers, quantified selfers or simply, quantifiers, they measure and track minute details of their bodies.

Scientists are researching ways to monitor motorists’ brain waves to improve reaction times in a crash.