Presenteeism refers to the phenomenon where employees come to work despite being sick or otherwise not feeling well. This can result in decreased productivity, as employees may not be able to perform at their full capacity when they are not feeling their best. Presenteeism can also impact the overall workplace environment, as sick employees may spread illness to their colleagues. Research in this area often explores the impacts of presenteeism on employee health, productivity, and overall well-being, as well as potential strategies for reducing presenteeism in the workplace.