"Overall, frequent Internet and social media users do not have higher levels of stress. In fact, for women, the opposite is true for at least some digital technologies. Holding other factors constant, women who use Twitter, email and cell-phone picture sharing report lower levels of stress.
At the same time, the data show that there are circumstances under which the social use of digital technology increases awareness of stressful events in the lives of others. Especially for women, this greater awareness is tied to higher levels of stress, and it has been called “the cost of caring.” Stress is not associated with the frequency of people’s technology use, or even how many friends users have on social media platforms. But there is one way that people’s use of digital technology can be linked to stress: Those users who feel more stress are those whose use of digital tech is tied to higher levels of awareness of stressful events in others’ lives. This finding about “the cost of caring” adds to the evidence that stress is contagious."