For Workers
Reduce your blood pressure and risk of heart disease
http://news.bbc.co.uk/1/hi/health/medical_notes/318025.stm
Improve your sleep patterns, and your sex life
http://news.bbc.co.uk/1/hi/business/1202482.stm
Reduce your chances of developing an alcohol addiction or tendency to perform "desk rage"
http://news.bbc.co.uk/1/hi/health/435894.stm
For Employers
Happier workforce, less prone to take days off sick or die of preventable conditions
http://www.cnr.berkeley.edu/ucce50/ag-labor/7article/article10.htm
Higher productivity
http://society.guardian.co.uk/news/story/0,7838,429996,00.html
Less administration on surveillance
http://www.cnn.com/2000/TECH/computing/05/11/job.surf.idg/