disclaimer: do not attempt if you have any sort of blood pressure or cardiac issues or anything that might be aggrivated by a bit of orothostatic hypotension.

First, inhale for 4 seconds, completely filling your lungs, then exhale, completely emptying your lungs. Repeat, taking one second off the inhale each time, but keeping the exhale at 4 seconds.

The effect is amplified if you bend over while doing it and stand up quickly after.

I don't know if they were referring to the Wim Hof breathing technique, but it will also make you super lightheaded and put you in a meditative state.

Round 1:

about 30 deep breathing breaths. non stop fill it all, empty it all. fast paced

After the last breath, keep your lungs empty and DO NOT BREATH for a whole minute

after the minute, fill your lungs fully then hold for 15 seconds

breath normally for 5 seconds or so

Round 2 (where it gets ''hard'':

same thing, about 30 deep breaths non stop fill it all, empty it all. fast paced again

After the last breath, keep your lungs empty and DO NOT BREATH nor fill them with the slightest bit of air for a whole minute and a half. again, do not fill your lungs at allll.

after the minute and a half you fill it for again 15 seconds

breath normally for 5 seconds or so.

Round 3.

Exact same as round 2. this one will probably where it feels like you wont make it but you got to let the body do it's thing!