Brad Lea on Instagram: "Chronic mouth breathing doesn’t just affect teeth, it can change facial structure, airway space, and even how the brain lights up. There was a study comparing mouth breathers vs nose breathers, and the difference in brain activity was massive. Less oxygen. Less stimulation. Less firing. The goal is simple: you want more areas lighting up, not fewer. From a recent podcast with guest @dr.mcintosh.ent and @bill.harrell.31 Full ep on YT at link in bio 👉 @therealbradlea"