Employers are being told they must watch out for the mental well-being of their staff, as well as the physical.
Judi Clements, chief executive of the Mental Health Foundation, said a recent survey found that only 40 per cent of people were happy in their jobs. "Forty-five per cent were planning to look for another within the next year and only 33 per cent would recommend their employer."
She said unhappy people in a workplace could make a big difference to productivity.
"The possible impacts are a higher rate of staff turnover, higher rates of sick leave, increases in workplace injuries and accidents, increased expenses for counselling [in workplaces that have an employee-assistance programme] and less open communication between staff."
Clements said employers should set up a culture where people treated each other with respect and kindness and staff felt able to ask for help. "People don't leave their families and relationships behind when they come to work. Giving people permission to live a balanced life will ultimately result in greater productivity."