I'm 18 and founded an AI startup. I have to wake up at 3 a.m. to work on it before school, but it's worth every sleepless night.

Alex Yang details founding an AI startup with other high schoolers worldwide to improve Alzheimer's diagnostics.

From 3D printing to private lending, these are the most creative ways people made money in 2025

Throughout 2025, Business Insider spoke to a handful of entrepreneurs and side hustlers who found inventive ways to make ...