The 4-Hour Body - An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman - Timothy Ferriss
Much of it was written after I lost almost all sensation in my hands following the
purging exercises, and after colors began to morph. After 3 minutes and 20 seconds, I was
shaking.
FYI, the above side effects are all common.
DEFINITIONS
Deep breathing: Taking a big breath in through the mouth, holding for one second, and then
exhaling for 10 seconds through your almost-closed mouth with tongue pressed against
your lower teeth. It should be a hissing exhalation and make a tsssssss sound. All breathing
and exercises--both inhalation and exhalation--are performed through the mouth.
Purging: A strong exhalation as if you were trying to blow a toy sailboat across a pool,
followed by a big but faster inhalation. David's cheeks were puffed out as he demonstrated
the exhalation. (Imagine the Big Bad Wolf blowing the pigs' houses down.) Be careful not
to heave or rock back and forth, as this wastes oxygen. Keep as still as possible.