TippaPatt / Shutterstock.com
Toh Hong Keng spent a long career in technology sales. After decades of work, the Malaysian executive finally retired in 2019. But not for long. Soon after retirement, Toh entered medical school. After five years of study, he graduated in July, becoming one of the world’s oldest people to complete such studies, according to a CNN report. Toh’s motivation for becoming a doctor was…