The Link Between Gut Health, Mood & Performance. LifeVantage ProBio and PhysIQ Prebiotic work together to strengthen this vital connection. Ever had a “gut feeling” about something? Turns out, your gut’s not just talking—it’s leading. Science now confirms that your gut is deeply connected to your brain and overall performance. It’s called the gut-brain axis, and it’s a two-way street where what happens in your digestive system can directly influence your mood, energy, focus, and even how well you handle stress. It’s no coincidence that when your stomach’s off, everything feels off—your energy dips, your focus scatters, and your mood takes a hit. That’s because your gut is more than just your digestive center—it’s your second brain. Through the gut-brain axis, your gut and brain are constantly communicating, and the state of your microbiome plays a direct role in how you feel, think, and perform. At the core of this connection is your microbiome —a bustling ecosystem of ...