Ever thought so long and hard on a problem that your forehead grew hot, your brain became frazzled and your eyes grew bleary?

Ever wondered exactly how much your job is stressing you out? Scientists have developed a temporary forehead tattoo that ...

Researchers at the University of Texas at Austin have developed a "forehead e-tattoo" – a wireless, paper-thin device that ...

The non-permanent wireless forehead e-tattoos decode brainwaves to measure mental strain, without the need for bulky headgear ...

An 800-year-old mummy displays unique facial tattoos with rare mineral ink, offering new insights into ancient South American tattoo practices and cultural identity.

In a breakthrough that could reshape how we track cognitive stress, researchers have developed a wireless electronic forehead tattoo that monitors brain activity and predicts mental fatigue. The ultra ...