A subject wearing the e-tattoo while answering test questions. Credit: Device H Huh et al. Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday ...

Had a tough day? Soon you'll be able to prove it as researchers have unveiled a groundbreaking way to track when your brain is working too hard—with a face tattoo.

Researchers develop face 'e-tattoo' to track mental workload in high-stress jobs New wireless forehead e-tattoo measures EEG and EOG signals to monitor cognitive fatigue and performance.

Researchers gave participants face tattoos that can track when their brain is working too hard. Published in the journal Device, the study introduces a non-permanent wireless forehead e-tattoo ...

Senior researcher Nanshu Lu and her team were driven to develop their e-tattoo by a well-known conundrum; electroencephalography (EEG) can reliably measure a person’s brain activity, but it’s ...

Electronic tattoo gauges mental strain Date: May 29, 2025 Source: Cell Press Summary: Researchers gave participants face tattoos that can track when their brain is working too hard.

The next wearable tech could be a face 'tattoo' that measures mental stress. ... Still, she can imagine a world where the e-tattoo is used by people not employed in high-stakes jobs.

San Ramon, California, November 22, 2019. (Photo by Smith Collection/Gado/Getty Images) Getty Images. New waves of skin-integrated wearables are turning our faces into dashboards and mental health ...