The figures come from the job stress index, compiled by monitoring group Health Promotion Switzerland, who has put together the findings annually since 2014.
The number of emotionally exhausted Swiss rose slightly from 2019 to 2020.
The study found that almost a third of Swiss workers felt stressed out, up from a quarter when the study began in 2014.
The impact of stress was especially pressing for younger people – between the ages of 16 and 24 – of whom 52.18 percent said they suffered from stress.
According to the study, approximately 7.6 billion Swiss francs is lost every year due to stress in Switzerland.
The researchers note that the study was completed from February to March 2020, before the impacts of the coronavirus pandemic were felt.
As noted by the authors “a follow-up measurement in 2021 for the same people is already being planned and will be able to show the impact relatively clearly after a year of pandemic.”