You make a great point. I think you are right in your classification. But the basic point in my comment was that the Wim Hof technique is simpler than Pranayama

You make a great point. I think you are right in your classification. But the basic point in my comment was that the Wim Hof technique is simpler than Pranayama, and is highly beneficial in itself. Pranayama is very technical, and I am always worried that I am "doing it wrong".