Microsoft has applied for a patent that will make it possible for computers to monitor their users and pass information on the productivity, competence and physical state back to employers. 

This is according to The Times, which says the patent application is for a computer system that links to its user via wireless sensors that measure just about everything from heart rate and body temperature to brain signals and movement. Even blood pressure and facial expressions could be monitored and analysed.
Concern is being expressed about how intrusive the system could be, and fears that workers could face dismissal based on their physical state.
Microsoft, however, defends the system as being in place to determine if workers need help.