Modtub on Instagram: "One thing people don’t always think about with cold plunging is how you sit in the tub. Position matters. When you can stretch out instead of huddling up, your body stays fully exposed to the cold and the experience feels more effective overall. It’s harder to hide from the cold, easier to relax into it, and easier to stay submerged. That’s why size and layout make a real difference. Being able to sit back, extend your legs, and fully immerse your body changes the entire pl