Replacing one hour of daily television watching with physical activity, sleep, or other pursuits can significantly reduce the risk of developing severe depression, especially among middle-aged adults. In some cases, cutting screen time by two hours lowered the risk of depression by more than 40%.

The Impact of Reducing TV Time

Spending less time watching television and engaging more in other activities helps prevent severe depressive disorders, particularly in middle age. This conclusion was reached by the authors of a new study published in the journal European Psychiatry on behalf of the European Psychiatric Association and Cambridge University Press. The researchers found that middle-aged people benefit the most, while the effect was less pronounced among younger and older participants.

Study Features

Lead author Rosa Palacios-Gonzalez from the University of Groningen noted that the uniqueness of the study lies in analyzing the consequences of purposefully replacing TV time with other activities, such as exercise or sleep. Previous research mainly focused on the link between a sedentary lifestyle and depression, rather than the impact of specific alternative activities.

“We found that reducing TV watching by 60 minutes and reallocating that time to other activities lowers the risk of severe depression by 11%,” said Palacios-Gonzalez. “When 90 or 120 minutes were reallocated, the reduction reached 25.91%.”

Greatest Effect Among Middle-Aged Adults

In the middle-aged group, replacing one hour of daily TV watching with other activities reduced the risk of depression by 18.78%. Reallocating 90 minutes lowered the risk by 29%, and replacing two hours led to a 43% reduction. Almost all substitution options were linked to a lower risk of depression, except one: replacing 30 minutes of TV with household chores did not result in significant changes. However, reallocating this time to sports reduced the risk by 18%. Substituting TV time with physical activity at work or school lowered the risk by 10.21%, with leisure or commuting by 8%, and with sleep by 9%. Across all time intervals, sports provided the greatest reduction in the likelihood of developing severe depression.

Results for Older and Younger Adults

For older adults, simply replacing TV time with other daily activities did not significantly affect depression levels. The only activity that showed a noticeable effect was sports: replacing 30 minutes of TV with physical activity reduced the risk of depression from 1.01% to 0.71%. With 60 minutes, the risk dropped to 0.63%, and with 90 minutes, to 0.56%.

Among younger people, shifting time from TV to physical activity did not significantly change the risk of depression. Researchers note that young participants are generally more physically active and likely already exceed the activity level needed for protection against depression.

Study Description

The results are based on the large-scale Lifelines population study (Netherlands), which included 65,454 adults who did not have depression at the start of the observation. Participants were monitored for four years, with careful comparisons across different age groups. People reported how much time they spent on activities such as active commuting, leisure exercise, sports, household chores, physical activity at work or school, watching TV, and sleeping. Diagnoses of major depressive disorder were determined using the Mini International Neuropsychiatric Interview.