Respirer: Le pouvoir extraordinaire de la respiration

The book dives into various scientific studies and historical practices. I'm curious what motivated this focus and how the research was conducted.

The stories about different cultures and their breathing techniques added a lot of depth, but I wonder if others felt the same or preferred more scientific explanations.

There are so many methods out there—what was the process behind selecting the practices shared, and which ones are most effective according to the research?