At DEXASCAN.COM, we share the belief of Peter Attia and other leading longevity experts that VO₂ Max is one of the most important health markers you can track. The good news? Improving VO₂ doesn’t always require complicated training—it can begin with something as simple and powerful as breathwork. That’s why we created this eBook: to give you practical tools to start measuring, tracking, and improving your VO₂ in just 30 days.

Table of Contents

1. Section 1 — Baseline & Goal Setting
2. Section 2 — Best Breathwork Techniques
3. Section 3 — Integration into Daily Life
4. Section 4 — Advanced Hacks
5. Bonus Sections

Section 1 — Baseline & Goal Setting

What is VO₂ Max?

VO₂ Max (short for maximal oxygen uptake) is the measurement of how much oxygen your body can use during intense exercise. Think of it as your engine size for endurance and stamina—the higher your VO₂ Max, the more efficiently your body can deliver oxygen to your muscles and sustain effort.

• Why it matters:
  • High VO₂ Max = better performance in sports, running, cycling, and daily life energy.
  • Low VO₂ Max = faster fatigue, poorer recovery, and higher long-term risk for cardiovascular disease.
• How it’s measured:
  • In labs: VO₂ Max is tested by running or cycling with a mask that measures oxygen exchange.
  • At home: Estimate VO₂ Max using wearables (Garmin, Apple Watch, WHOOP) or field tests like the 12-minute Cooper Run.

Simple analogy: Imagine your body as a car. VO₂ Max is the horsepower of your engine. More horsepower means you can go harder and longer before burning out.

What is Breathwork?

Breathwork is the practice of deliberately controlling your breathing patterns to improve physical, mental, and emotional health. While we breathe automatically all day, how we breathe profoundly impacts our energy, stress, endurance, and even VO₂ Max.

• Types of breathwork:
  • Box Breathing: Inhale → Hold → Exhale → Hold (equal counts, like 4-4-4-4).
  • CO₂ Tolerance Training: Lengthening exhales or holding breath to improve oxygen efficiency.
  • Breath Holds / Hypoxic Drills: Training your body to stay calm under low-oxygen conditions.
• Benefits for VO₂ Max:
  • Expands lung capacity.
  • Increases tolerance to carbon dioxide, delaying the urge to breathe and helping muscles use oxygen more effectively.
  • Trains respiratory muscles (diaphragm and intercostals), improving stamina.

Why Baseline Testing Matters