Big thanks go out to Walter Johnson for an excellent write-up on lung injuries in Freediving.
His approach to understanding lung barotrauma (lung squeeze) defines concepts that allow us a deeper understanding of what happens - and what can happen - to our lungs at great depths. Walter's analysis of Nick Mevoli's last deep freedive is a great piece of writing in itself and an extraordinary piece of learning for those who want to take their freediving deeper.
Highly recommended reading for anyone who wants to find out what greater depth looks and feels like!
Download Walter's article below.