Head tattoos are usually a last frontier reserved for true ink addicts, but they could help make it a whole lot easier to ...

Rihanna's "Rebelle Fleur" Tattoo Rihanna, the famous singer and businesswoman, has been known to make bold fashion ...

Electroencephalography (EEG), a technique for measuring brain activity, has long been a cornerstone of diagnosing ... Luckily ...

The specialized ink could eventually replace clunky EEG wires and "potentially revolutionize" brain-computer interface ...