Researchers at Northwestern University have developed the world’s smallest pacemaker—small enough to be injected with a syringe and powered by light from a wearable chest patch. Designed to dissolve inside the body once it’s no longer needed, the device could be a game‑changer for newborns with congenital heart defects who only need temporary pacing after surgery, cutting down on risky procedures and repeat operations.

Full EP | Scientist created the world’s smallest pacemaker; Adopt black children then teach them black culture; Talking All that Jazz with Mimi Brown; Five annoying things men do; and More
41:59

DLHS Hour 3 | Talking All that Jazz with Mimi Brown
13:09

DLHS Hour 2 | Adopt black children then teach them black culture
11:10