"Science suggests screen use, especially in the evening, may trigger spikes in cortisol, the stress hormone, as a result of the blue light emitted by screens and the constant influx of overstimulating information."
"Cortisol levels rise temporarily in response to stressors, like work or emergencies, and prolonged elevation of cortisol can negatively impact sleep and overall health."
Cortisol tests were conducted to evaluate the effectiveness of blue light glasses in reducing stress. The study compared the glasses with meditation and screen avoidance. Science indicates that screen use, particularly in the evening, can elevate cortisol levels and suppress melatonin, affecting sleep quality. The tests involved finger-prick samples sent to a lab for analysis. Cortisol naturally spikes in the morning and declines throughout the day, but stressors can cause prolonged elevation, impacting overall well-being.
Read at ZDNET
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