Mental & Emotional Health
Stress Management
Stress-Free Living

Stress Is Contagious

Watching somebody else try to cope with a stressful situation, even on TV, can be enough to bump up your own level of the stress hormone called cortisol. That is the finding of research done at the Max Planck Institute for Cognitive and Brain Sciences in Leipzig and the Technische Universität Dresden and published on April 17th 2014 in the journal Psychoneuroendocrinology.

The team reports that the “empathic stress” was most likely to occur when when the observer and the stressed person were in a couple relationship and the stressful situation could be directly observed through a one-way mirror. However, even watching stressed strangers via video transmission was enough to put some people on red alert. The researchers believe that In our stress-ridden society, empathic stress is a phenomenon that should not be ignored by the health care system.

A release from the Max Planck Institute notes that stress is a major health threat. It causes a range of psychological problems such as burnout, depression, and anxiety. Even those who lead relatively relaxed lives constantly come into contact with stressed people either in real life or on TV.

The release quotes Veronika Engert, one of the study’s first authors, as saying, “The fact that we could actually measure this empathic stress in the form of a significant hormone release was astonishing.” She maintains points out that many studies experience difficulties to induce even firsthand stress. The authors found that empathic stress reactions could be independent of (“vicarious stress”) or proportional to (“stress resonance”) the stress reactions of the actively stressed individuals. “There must be a transmission mechanism via which the target’s state can elicit a similar state in the observer down to the level of a hormonal stress response.“

During the stress test, the test subjects had to struggle with difficult mental arithmetic tasks and interviews, while two supposed behavioral analysts assessed their performance. Only five percent of the directly stressed test subjects managed to remain calm; the others displayed a physiologically significant increase in their cortisol levels.

In total, 26 percent of observers who were not directly exposed to any stress also showed a significant increase in cortisol. As mentioned earlier, the effect was particularly strong when observer and stressed individual were partners in a couple relationship (40 percent). However, even when people were watching a complete stranger, the stress was transmitted to ten percent of the observers. Accordingly, emotional closeness is a facilitator but not a necessary condition for the occurrence of empathic stress.

When the observers watched the events directly through a one-way mirror, 30 percent of them experienced a stress response. However, even presenting the stress test only virtually via video transmission was sufficient to significantly increase the cortisol levels of 24 percent of the observers. “This means that even television programs depicting the suffering of other people can transmit that stress to viewers,” says Engert. “Stress has enormous contagion potential.”

Stress becomes a problem primarily when it is chronic. “A hormonal stress response has an evolutionary purpose, of course. When you are exposed to danger, you want your body to respond with an increase in cortisol,” explains Engert. “However, permanently elevated cortisol levels are not good. They have a negative impact on the immune system and neurotoxic properties in the long term.” Thus, individuals working as caregivers or the family members of chronically stressed individuals have an increased risk to suffer from the potentially harmful consequences of empathic stress. Anyone who is confronted with the suffering and stress of another person, particularly when sustained, has a higher risk of being affected by it themselves.

The results of the study also debunked a common prejudice: Men and women actually experience empathic stress reactions with equal frequency. “In surveys however, women tend to assess themselves as being more empathic compared to men’s self-assessments. This self-perception does not seem to hold if probed by implicit measures”

Future studies are intended to reveal exactly how the stress is transmitted and what can be done to reduce its potentially negative influence on society.

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