Interesting it hasn't been long when i had watched and read about him. I have started to shower with ice cold water  since then and must say it is amazing.:shock:  And his breathing techniques are triggering dmt yawns and tingling sensations in some parts of my head plus i have broker my PR in holding my breath with this breathing exercises. Went from 1min 30sec to 3min 40sec.8) :!:

Guy seems legit. Check some of his interviews and documentaries were he also mentions dmt, pineal gland etc.