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What is SubZero cryotherapy?

Last updated: October 23, 2026


SubZero uses pressurized CO₂ gas to chill a small area of the body fast enough to cause "thermal shock", which activates the body’s healing response: muscles relax, fresh blood and nutrients move to the area, and pain signals quiet down. It is quick and non-invasive, with no downtime. Chuck Renner offers SubZero in Springfield, MO; you can add it to a session or ask whether it fits what you are dealing with.

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