Thirty?five percent of workers who telecommute said their mental health had deteriorated as a result of doing so amid the COVID?19 lockdown, according to a survey conducted by researchers at Keio University in Tokyo, among other institutions, Fox Business reported April 13. The survey was conducted online March 26?28, involving 8,475 employees ? including nonregular workers ? aged 20 to 64. Of the 21% of respondents who said they work from home, one?half of them did so in response to the COVID?19 outbreak. Among the telecommuters, 50.7% said it had no impact on their mental health, and 14.3% said their mental health had improved. Of the respondents who said doing telework had worsened their mental state, 41.3% said it was difficult to separate their work and personal lives, followed by 39.9% who said they weren't able to exercise enough and 39.7% who said they had difficulty communicating with co?workers. Professor Isamu Yamamoto of the Keio University Faculty of Business and Commerce, who conducted the survey, said: ?There is a risk that working hours will get longer if the boundaries between work and personal life become blurred. It is necessary to establish a rigid system in which work can be carried out in a planned manner, such as by setting working hours and the timing of contact with supervisors.?