About BHVD

A field guide to controlled cold.

The Cold Shift explores deliberate state change through cold, sound and design. It brings together the thinking behind The Ice Sack and Neuropause, published research and practical guidance.

Publisher and editorial standards

The Cold Shift is published by BHVD Labs LLC, maker and seller of The Ice Sack and creator of Neuropause.

We identify published research, manufacturer specifications and BHVD’s design ideas, with sources and verification status. Findings from other cold methods are distinguished from direct Ice Sack research.

BHVD funds this guide through The Ice Sack product sales. We accept no third-party sponsorships, paid editorial placements or affiliate commissions.

Related projects

• Body Mind State — Nervous system science for the informed human
• The Ice Sack — Wearable dry cold system