NPR

A new survey of people who live to 100 finds most of them say they feel decades younger than their actual age. alvarez/E+/Getty Images hide caption toggle caption alvarez/E+/Getty Images …

Taylor Jane Stimmler displays her continuous glucose monitor she wears on her arm on March 02, 2023 in New York City. Spencer Platt/Getty Images hide caption toggle caption Spencer Platt/Getty …

Our body is an exquisite time-keeping machine. Every cell that has DNA has a molecular clock, but they don’t keep perfect time on their own. AzmanL/E+/Getty Images hide caption toggle …

The device itself is small, but the hype around it is huge. While continuous glucose monitors are only a quarter of the size, the companies that sell them make a …