Contrast Therapy (Fire & Ice)

Contrast therapy at Float U Humboldt is a guided recovery experience that alternates between heat and cold exposure to support circulation, reduce stiffness, and regulate the nervous system. We are the only wellness space in Humboldt County offering infrared sauna and cold plunge together in a private room, allowing you to move between heat and cold without interruption, exposure, or distraction. This intentional setup supports deeper recovery and a more focused nervous-system reset. 

Benefits of Contrast Therapy

Encourages circulation through alternating vasoconstriction and vasodilation

Helps reduce muscle soreness and stiffness

Supports nervous-system adaptability and recovery

Commonly used to enhance post-exercise recovery

Promotes mental resilience through controlled stress exposure 

Who Contrast Therapy Is For

Athletes and active individuals focused on recovery and performance

People managing muscle soreness, stiffness, or physical fatigue

Those looking to improve stress tolerance and nervous-system regulation

Anyone wanting a structured heat-and-cold recovery experience in a private setting 

Who Should Avoid Contrast Therapy

Pregnant

Cardiovascular Disease

Uncontrolled High Blood Pressure

History of Stroke

Raynaud’s Syndrome

Cold or Heat Hypersensitivity

Any Condition Affected by Rapid Temperature Changes

If You Have Concerns Please Consult a Physician

What to Expect

Contrast therapy sessions take place in a private recovery room that includes both an infrared sauna and a cold plunge. A spa attendant will walk you through the flow and timing based on your comfort and experience level. You’ll alternate between heat and cold at your own pace, with time built in to rest and re-regulate between rounds. Sessions are intentionally spaced to eliminate rushing and support a focused, uninterrupted recovery experience. 

The Science Snapshot

Contrast therapy works by intentionally alternating between heat and cold exposure, creating a pumping effect in the circulatory system. Heat encourages blood vessels to dilate, increasing blood flow and tissue relaxation, while cold causes vessels to constrict, helping regulate inflammation and nervous-system activation. Repeating this cycle may support circulation, reduce muscle stiffness, and improve the body’s ability to adapt to physical and mental stress.

From a nervous-system perspective, contrast therapy challenges the body to transition smoothly between states of stimulation and recovery, which can support long-term regulation and resilience. Contrast therapy is not a medical treatment, but it is commonly used as a complementary recovery practice.