US clinic’s treatment for ADHD? Play this video game five days a week.

The game is only available to patients with a prescription and is obtained from specialty pharmacies, which provide a copy that can be downloaded onto a smartphone, tablet or computer. — Image by Freepik

How’s this for medicine?

Freah Lewis sits on the sofa at her Port Richey home, a tablet in her small hands. On the screen, her avatar rides a small hovercraft over rivers and valleys. She controls the craft’s direction by tilting the tablet left or right. Every few seconds, the 10-year-old earns points by swatting shifting targets on-screen with her thumbs.