# some studies have put a time on how much unpaid work leads to changes in mental health > Most studies reported the effect estimate on a continuous scale, whereby a 1 h increase in unpaid labour per week led to small but significant changes in mental health status. The observed effects are more interpretable when the mental health effects for a 10 h increase in unpaid labour time per week are extrapolated [[(Ervin et al., 2022)#^ogkwi]] [[burnout is personal]]