Input
What controlled cold is — and what it is not.
Controlled cold defines the input.
Cold exposure means applying a below-normal temperature to the body. Controlled cold defines the delivery method, contact conditions, duration, intended use, and exit. In this framework, those variables create a bounded sensory event that can become the object of deliberate attention.
The delivery format does not establish a medical, performance, recovery, or therapeutic outcome. It establishes the conditions for a practice of noticing, observing, and choosing.
Not all cold is the same.
Research on cold exposure uses a variety of delivery methods, each with different temperature profiles, surface contact areas, cooling rates, and physiological effects. Borrowing results from one method and applying them to another without qualification is not responsible.
Water Immersion
Temperatures, durations, and physiological outcomes require source records before final publication.
Why this matters.
The Cold Shift uses cold as a starting point — as the raw sensory input for a practice that is about awareness, not cold itself. But that starting point must be honest about what the cold does and does not do, and about what evidence exists for the specific delivery method used.
This chapter establishes the rule: every claim about cold on this platform identifies which delivery method the evidence comes from, and whether that evidence applies to dry cold containment.
The Cold Shift framework — that cold can serve as a structured sensory input for deliberate practice — is a BHVD conceptual model. It has not been validated as a complete framework by independent research.