The study, published in theJournal of Occupational Health Psychologyrecently, also found that working on a day when you feel ill drains mental energy which cannot be recovered the next day.

The study seeks to shed further light on the phenomenon of 'presenteeism' -- defined by the researchers as continuing to work when experiencing ill-health. The practice has been labelled an '800-pound gorilla' by researchers in occupational health psychology because of the tremendous costs it inflicts on employees and organisations alike. These costs include burnout, impaired workability, and productivity loss.

This study led by Dr Wladislaw Rivkin, Associate Professor in Organisational Behaviour, Trinity, deepens our understanding of the harmful impact of presenteeism on employee effectiveness by demonstrating that depletion of mental resources is a key mechanism responsible for these harmful effects.

The research involved 126 employees logging their daily productivity across 12 workdays, resulting in 995 daily work observations. It was conducted during the COVID-19 lockdown in 2020 when all participants were working from home.

Dr Rivkin commented:

"It is crucial to tackle daily presenteeism, especially for remote workers. Managers should openly discourage presenteeism by reassuring team members that if they feel unwell it is acceptable to reduce their daily work goals and instead tend to their health. In light of the energy-depleting nature of presenteeism if employees engage in presenteeism they should work on tasks that are inherently pleasant rather than tedious tasks that further drain their energy.

"So, while it may seem a good idea to work despite ill health to deliver on work goals our research shows that this has a knock-on effect for remote workers' performance on the next day as presenteeism drains employees' psychological energy, which cannot be fully recovered after work."

The full paper was entitled "Should I stay or should I go? The role of daily presenteeism as an adaptive response to perform at work despite somatic complaints for employee effectiveness."

Wlad Rivkin is an Associate Professor in Organisational Behaviour and Work Psychology whose research focuses on burnout, stress and other demands that people experience at work as well as what organisations can do to protect employee wellbeing and maintain their effectiveness. Other recent research projects include studies on the impact of commuting on employee wellbeing, the role of willpower in overcoming the negative effects of a bad night's sleep and how smartphone use during non-work time impacts on sleep quality.