https://thenextweb.com/science/2019/09/19/scientists-invented-an-electric-baseball-hat-to-reverse-male-baldness/

An international team of researchers just developed the most sophisticated treatment for male baldness ever: a hat that covers up your hairless head.

Wait, there’s more. It also contains a self-actuating electrical ‘patch’ that stimulates the scalp, regenerates damaged tissue, and regrows hair thicker and quicker than pharmacological treatments.