Scienceline

Nelson Dellis wears many hats. He’s a software developer, mountaineer and runs a charity that raises money for Alzheimer’s research. But most famously, he’s a memory athlete: He’s won the USA Memory Championships four times, and routinely places in the top 10 at the world competition. Katherine Foley sat down with him to learn more about how he got into the memory business, and what techniques he uses to stay sharp.