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Contrast Therapy: Why Sauna + Cold Plunge Could Be Your Ultimate Recovery Combo

30 September 2025

If you’ve ever stepped out of a sauna and plunged into cold water, you know the shock to your system is immediate - but so is the rush of clarity, energy, and invigoration. This practice, known as “Contrast Therapy” - pairs hot and cold exposure to maximise the benefits of each. While some people like cold first, there’s something particularly powerful about raising your body temperature in a sauna before hitting the cold plunge.

At SAINT Studios, recovery is a very important aspect of your gym routine.

Why Sauna First? The Benefits of Heat

 

Spending time in a sauna isn’t just relaxing – it’s a full-body experience. Heat raises your core temperature, increases circulation, and encourages sweating, which can aid in detoxification. It also stimulates the release of growth hormone, supporting tissue repair and overall hormonal balance. Mental health benefits are huge too: sauna sessions have been linked to reduced stress, improved mood, and enhanced relaxation.

 

For your joints and muscles, the heat helps loosen tight tissues, improve flexibility, and prime your body for recovery – It’s essentially a warm-up for your entire system before you introduce the cold.

The Cold Plunge: Shock and Recovery

Jumping into cold water after a sauna might feel intense – but that intensity is part of the magic.  

Cold plunges:

  •   Reduce inflammation and muscle soreness.
  •   Boost circulation by constricting blood vessels and then promoting blood flow once you warm back up.
  •   Improve mental clarity and alertness through a surge of adrenaline and norepinephrine.
  •   Support immune function and resilience.

Individually, cold plunges are incredible for recovery and mental focus, but pairing them with a sauna can amplify the benefits.

Why Combine Heat and Cold?

The contrast between hot and cold creates a unique stress response that your body adapts to – When you go from the sauna to the cold plunge:
  • Circulatory boost: Your blood vessels expand in the heat, then constrict in the cold, which helps with circulation, nutrient delivery, and flushing out metabolic waste.
  • Enhanced recovery: The combo can accelerate muscle recovery and reduce delayed-onset soreness, making it perfect for post-exercise recovery.
  • Hormonal and nervous system benefits: Alternating temperatures can stimulate the autonomic nervous system, supporting hormone regulation, resilience to stress, and overall well-being.
  • Mental clarity: That icy shock after deep heat leaves you alert, focused, and invigorated – often described as a “Reset” for both body and mind.

Contrast Therapy Protocols

Everyone has a different tolerance and preference, but here are some general approaches:

Option 1: Sauna – Cold Plunge

 

  •   Sauna: 8–15 minutes at 80–100°C (or as comfortable).
  •   Cold Plunge: 1–3 minutes at 7–14°C (or as comfortable).
  •   Repeat 2–3 rounds if desired, with breaks to hydrate.
Option 2: Shorter, Intensified Rounds

 

  •   Sauna: 5 minutes
  •   Cold Plunge: 1 minute
  •   Repeat 3–5 rounds for a more intense circulatory and nervous system stimulus.
Option 3: Personal Preference Approach

Start with whichever temperature you prefer, then adjust duration and rounds over time. Some people enjoy cold first, then heat, but many find sauna first maximises relaxation, recovery, and the mental clarity of the final plunge.

Contrast therapy isn’t just a trendy wellness hack

It’s a science-backed method to support recovery, circulation, mental clarity, joint health, and hormonal balance. Using the sauna to raise your body temperature first enhances the benefits of the subsequent cold plunge, leaving your body and mind feeling restored, alert, and invigorated. 

Whether you’re training hard, chasing mental clarity, or just seeking a reset after a long day, sauna + cold plunge is a ritual that delivers holistic wellness in every icy, heat-soaked minute.