The Body Oxygen Level Test (BOLT) is a scientific assessment that measures breathing efficiency and CO₂ tolerance. This test provides valuable insights into your breathing status, oxygen utilization, and stress resilience. Learn how to perform the BOLT test effectively and interpret your BOLT score based on breath-holding durations. Discover the benefits of improving your BOLT score, including enhanced energy levels, stress resilience, endurance, and mental clarity. Begin your journey towards optimal health with simple breathing exercises. Keywords: breathing efficiency; BOLT test; CO₂ tolerance; stress resilience; energy levels