The libraryStrength

Static apnea tables and breath-hold training

Eight weeks of tables grew the spleen about 24% and left the dive response itself unchanged.

Who it's forAny man running breath-hold tables off a breathwork app or a freediving video.

Emergency: call 911.

I am not a doctor. This is not medical advice. This is self-education. Talk to a physician who has your history before you change anything.