How does Wim Hof trigger DMT release?

Wim Hof, the Dutch motivational speaker known as "The Iceman," discusses his ability to influence the release of DMT through his unique breathing exercises. Tim Ferriss inquired whether the type of breathing Hof does is similar to holotropic breathwork and whether he produces or releases more DMT during these activities. Wim Hof confirmed he had informed a professor that he could trigger the pineal gland to release DMT using his breathing methods. Importantly, Hof emphasized that the release of DMT typically occurs naturally during the rapid eye movement (REM) phase of sleep, aiding in processing the subconscious, and at the time of death to facilitate a smoother transition to what comes after. His ability to consciously produce this effect is linked to influencing the pineal gland, which is integral to directing other glands in the body and is connected to the neocortex. Hof believes that this capability demonstrates how human beings can proactively engage with their physiology to prevent disease by reactivating the brain stem, which has become less active due to comfortable lifestyles 1.

Wim Hof also suggests that deep control over one's physiology can result in feelings of real comfort and success by enabling individuals to handle various forms of stress and impact on the body 2 3.