They did! Breathe in and out through your nose, spending 5.5 seconds each on inhale and exhale. This leads to taking the “optimal” 5.5 breaths per minute. Try to do this all the time but don’t experiment with new techniques when you’re driving a car or operating heavy machinery.
The book talks about all kinds of other stuff too but that’s the tl;dr.
> nose breathing
They did! Breathe in and out through your nose, spending 5.5 seconds each on inhale and exhale. This leads to taking the “optimal” 5.5 breaths per minute. Try to do this all the time but don’t experiment with new techniques when you’re driving a car or operating heavy machinery.
The book talks about all kinds of other stuff too but that’s the tl;dr.