Why aren’t more people buying over-the-counter hearing aids?

This article was originally featured on Undark.

When Frank Lin was in junior high, his grandma started wearing hearing aids. During dinner conversations, she was often painfully silent, and communicating by phone was nearly impossible. As a kid, Lin imagined “what her life would be like if she wasn’t always struggling to communicate.”

It was around that time that Lin became interested in otolaryngology, the study of the ears, nose, and throat. He would go on to study to be an ENT physician, which, he hoped, could equip him to help patients with similar age-related…