$100 Million Business From A Garage | Plunge Co-founder Ryan Duey

Ryan Duey, co-founder of Plunge, joins the Playbook HQ to share the origin story of building the world’s #1 cold plunge — starting from a garage during COVID.

We dive into:

• Why cold plunging creates an instant mental reset

• Nervous system regulation, hormesis, and “losing your breath” on purpose

• A powerful customer story that shows how deep these modalities can go

• Why Plunge built a high-heat sauna and what makes it different

• Plus Ryan’s flow stack: morning plunge, nighttime sauna, mini-trampolines, and his fundamental supplement stack