Using laptops or iPads just before bed 'increases risk of insomnia'

Computer users should turn their laptop or Apple iPad off at least two hours before going to bed if they want a good night’s sleep, scientists say.

American researchers have discovered that human brains and sleep patterns are confused by devices that emit bright lights.

Consumer electronics, such as laptops, deceive our minds that it is still daytime, preventing sleep and increasing the risk of insomnia.

http://www.telegraph.co.uk/technology/news/7731807/Using-laptops-or-iPads-just-before-bed-increases-risk-of-insomnia.html