We've all heard that sedentary lifestyles and deskbound jobs can lead to health problems such as obesity and cancer.
But now it seems the reverse is also true - with researchers finding that too much standing can be bad for you as well.
Up to half the world's employees spend 75 per cent or more of their working day on their feet, from those working in agriculture or construction to assembly lines, waitressing or retail.
A study has found that while the short-term effects are aching joints and sore feet, in the long term they could suffer painful back problems or permanent muscle damage.
Companies could also lose out thanks to increased sickness and lower productivity, according to scientists from the Swiss university ETH Zurich.