How After-Hours Emails Might Hurt Your Health

It’s 8:30 on a Tuesday night and you’re kicking back with some ice cream and TV after a tense day at work. You look at your phone and notice your boss has sent you a dozen emails in the last hour. Now, instead of having quality time with your family, you’re tensely planning what you’re going to say at that meeting on Thursday. So much for a quiet, relaxing night at home…

At the beginning of this year, a new law went into effect in France granting employees an extended “right to disconnect” from work. The law impels organizations to set guidelines that allow staff to “unplug” from expectations to check to email. Supporters of the new law have pointed to research linking email overload to insomnia, relationship stress, and burnout.

“Employees physically leave the office, but they do not leave their work,” French MP Benoît Hamon told the BBC. “They remain attached by a kind of electronic leash – like a dog. The texts, the messages, the emails – they colonize the life of the individual to the point where he or she eventually breaks down.”

The increasing use of technology has allowed many workers to enjoy greater flexibility with where and when they work, but it also means that the boundaries between work and leisure can become blurred. Research is increasingly showing that when work intrudes into people’s downtime, it not only causes stress but can also impact physical health.

Psychological scientists Anna Arlinghaus and Friedhelm Nachreiner (Society for Labour, Industrial and Organizational Psychological Research in Oldenburg, Germany) analyzed a massive dataset collected from nearly 24,000 employed workers in 31 European countries.

“Being contacted for work-related matters outside of regular/normal working hours may interrupt and reduce time for recovery from work-related strain and could potentially interfere with biological and social rhythms needed for recovery, sleep, and social participation, depending on the time the contact occurs,” Arlinghaus and Nachreiner write in the journal Chronobiology International.

Previous research has shown troubling links between overwork and serious – sometimes even fatal – health conditions, ranging from trouble sleeping to increased risk of heart attacks.

Collected as part of the 4th European Survey on Working Conditions, the survey comprised self-report questions on work schedule, workload, and how frequently people were contacted by work via emails or phone calls outside of their normal working hours.

Health impairments were measured with the question ‘‘Does your work affect your health, or not?’’ If participants answered yes, they could select specific ailments from a list of 16 options (e.g., musculoskeletal, psychological, gastrointestinal, cardiovascular complaints). Participants were also asked about how many days they had taken off from work due to health problems over the past year.

The results revealed that people who reported more afterhours contact from work also reported higher rates of health issues, such as musculoskeletal pain and cardiovascular conditions.

“The findings of the present study indicate that employer-determined contact outside the normal/regular working time is associated with increased risk of health impairments and sickness absence,” the researchers conclude.

In another recent study, University of British Columbia psychological scientists Kostadin Kushlev and Elizabeth Dunn examined the relationship between checking email and stress. Their conclusion – when participants reported feeling far less stress when their access to email was limited.

“During one week, 124 adults were randomly assigned to limit checking their email to three times a day; during the other week, participants could check their email an unlimited number of times per day,”  Kushlev and Dunn write. “We found that during the limited email use week, participants experienced significantly lower daily stress than during the unlimited email use week.”



Arlinghaus, A., & Nachreiner, F. (2013). When work calls—Associations between being contacted outside of regular working hours for work-related matters and health. Chronobiology international30(9), 1197-1202. doi: 10.3109/07420528.2013.800089

Kushlev, K., & Dunn, E. W. (2015). Checking email less frequently reduces stress. Computers in Human Behavior43, 220-228. doi: 10.1016/j.chb.2014.11.005


The researchers are mixing up cause and effect. What leads to bad health, heart attacks, etc. is stress. To blame stress on just work-related emails is like saying only work causes stress. How about spouses? Families? Neighbors? The new US President? Also, why can’t I be having a good time with good friends through email? Or Whatsapp? Poor research and conclusions.

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