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 ...

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 ...

New face tattoo protects your brain from working too hard, scientists say. Sensors could help safety by tracking mental strain that air traffic controllers, lorry drivers and others are under.

E-Tattoos on Your Face Will Now Track How Hard You're Working. Published May 29, 2025 at 11:00 AM EDT. By . Alice Gibbs is a Newsweek Senior Internet Trends & Culture Reporter based in the U.K.

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.