08/06/2026
You’ve probably heard that VO2 max is one of the strongest predictors of health span and longevity. While your heart plays a central role, VO2 max also depends on your lungs, blood, muscles, and the strength and endurance of your breathing muscles.
The best way to improve VO2 max is through regular aerobic exercise, especially vigorous exercise. But if you’re unable to train hard, or you simply want to strengthen your breathing muscles, inspiratory muscle training can be a useful supplement.
There are many resistance breathing devices on the market, but they need to be cleaned carefully because moisture can allow bacteria and mold to grow. That’s why I like using a simple aluminum straw. It’s inexpensive, easy to disinfect, and can provide breathing resistance without the maintenance challenges of more complex devices.
Want to learn more about breathing?