This doctor turned a stroke at 24 into a $75 million bet on smart rings. Read his pitch deck.

Dustin Freckleton tests Happy Health's smart ring against traditional sleep-testing equipment. Dustin Freckleton Happy Health says it has raised $75 million since 2019. The startup builds an AI-powered smart ring to help doctors diagnose sleep apnea. Dustin Freckleton founded the company after having a stroke in medical school. At 24, Dustin Freckleton suffered a stroke during his first year of medical school that left him temporarily paralyzed on one side of his body and searching for answ...