It is estimated that nearly three in every ten employees will experience a mental health problem in any one year. However the recent and dramatic rise in Britain's working hours would suggest this is likely to increase. 13% of the UK working population work 49 hours or more per week. - See more at: https://www.mentalhealth.org.uk/a-to-z/w/work-life-balance#sthash.c9UhgnEs.dpuf