Your Brain on Zoom: The Impact of Video Conferencing

The Impact of Video Calls on Brain Activity and Stress Levels

It's widely acknowledged that frequent video conferencing impacts our cognitive state. But how can simply being present in one's own home throughout the day lead to feelings of fatigue and mental strain? Recent research conducted by Microsoft sheds light on this phenomenon, confirming that consistent video calls contribute to increased stress and heightened brain activity.

Microsoft's EEG Study

The study involved 14 participants engaging in eight 30-minute video calls, structured as four sessions daily. One day featured 10-minute breaks between calls, while the other consisted of a continuous block of meetings. Participants were equipped with EEG caps – devices used to monitor brain activity and identify different types of neural processes.

The findings, while not unexpected given the experiences of many over the past year, provide valuable empirical evidence. During the uninterrupted meeting block, participants exhibited elevated levels of beta waves. These brainwaves are commonly associated with stress, anxiety, and focused concentration.

The Benefits of Breaks

Researchers observed higher peak stress levels and a gradual increase in overall stress throughout the continuous meeting period. Conversely, incorporating 10-minute breaks between calls resulted in lower average stress readings and prevented the escalation of stress levels.

Furthermore, the inclusion of breaks correlated with increased measurements of positive engagement.

Image Credits: Microsoft/Valerio Pellegrini

Validating Common Experience

These results offer validation for a feeling many already recognize. While EEG readings aren't the most precise method for measuring stress, they provide a reliable assessment, surpassing the limitations of subjective self-evaluations. It's also impractical to utilize more advanced imaging techniques like MRI during typical work scenarios.

Therefore, while this evidence is valuable, it’s crucial to interpret it cautiously and acknowledge that stress occurs within a complex and often unequal work environment.

Gender Disparities in Zoom Fatigue

A recent Stanford University study highlights that “Zoom Fatigue” disproportionately affects women. More than twice as many women as men reported significant exhaustion following video calls. This disparity may stem from factors such as longer meeting durations for women and a reduced likelihood of taking breaks.

Increased self-consciousness regarding appearance also contributes to this imbalance, indicating that the issue extends beyond a simple dislike of video conferencing.

Technological Solutions and Recommendations

Microsoft offers several features within its Teams platform to address these challenges. These include scheduling buffer time between meetings and the “together mode” which aims to create a more natural collaborative environment.

Stanford researchers suggest practical strategies like opting for audio-only participation, positioning the camera at a distance while moving around, or disabling the self-view feature.

The Need for Structural Change

However, solutions cannot solely rely on individual adjustments. Structural changes are essential, especially as virtual meetings are likely to remain a prevalent part of the work landscape. Employers and meeting organizers must acknowledge these risks and implement policies that mitigate them.

These policies should aim to alleviate employee burdens, rather than adding to them. When discussing these concerns, referencing scientific evidence can be a powerful tool.