Quick answer: VO₂ max measures how efficiently your body takes in, transports, and uses oxygen during exercise. Large population studies now rank it among the
Most people don’t start by comparing methods. They start with a feeling. Something is off with their breathing. Maybe it feels shallow. Maybe recovery after
Breathing becomes weaker with age, and most people do not even realize it. It happens gradually: Climbing stairs becomes slightly more difficult. Engaging in long