Whether it's the Pepsi logo on his left arm, or the burning skull on his right leg, CM Punk has never shied away from ...

A soft forehead sticker called an e-tattoo tracks brain effort in real time. It replaces bulky EEG gear, detects fatigue early, and adjusts.

From symbolic religious art to personal mantras, Thunder big man Isaiah Hartenstein's tattoos tell the story of his journey ...