I am immensely glad someone tipped me off about Del Ferro
Because of lung covid, I had inefficient breathing. I was very short of breath and therefore had a standard heart rate above 130. In April, I started using the Del Ferro method and the results have been tremendous! By breathing differently, the shortness of breath has disappeared and my normal heart rate has returned. This has given me more energy and my recovery is clearly going in the right direction.
The exercises require discipline, but because results were so quick, it was quite easy. I would recommend it to anyone!
Marieke