The study by researchers at Chiba University in Japan, concluded that bosses should limit the time their staff spend on computers.
Lead researcher Dr Tetsuya Nakazawa said: ' This result suggests the prevention of mental disorders and sleep disorders requires the restriction of computer use to less than five hours a day.'
Another report I read mentioned that use of computer leads to people zoning out which is why many have the urge to surf the internet in the afternoon.
It is also bad for posture and skeletal formation. Mark Sisson has come up with great adaptation that can be used in the office. I would like to see this in mine! He has tread-desks and stand up workstations!