Cold plunging at 11–15°C for 10–15 minutes reliably reduces post-exercise muscle soreness and localised swelling for 24–72 hours after hard training. But a 2025 UniSA meta-analysis of 3,177 participants found … Read more
No cold plunges do not increase testosterone. The research points the other way. Three peer-reviewed studies that directly measured testosterone before and after cold water immersion all found either a … Read more
The best time of day to sauna and cold plunge depends on what you want out of it. For focus and mood: cold plunge first thing in the morning, 1–3 … Read more
KEY TAKEAWAY: No cold plunges do not lower blood pressure in the short term. They raise it. A 15-minute immersion at around 10°C lifts systolic blood pressure from a resting … Read more
KEY TAKEAWAY The best UV light for a cold plunge is a UV-C unit (254nm wavelength) rated at 18–40W for a typical 80–150 gallon single-person tub, plumbed inline with your … Read more
KEY TAKEAWAY For most people, 2-4 cold plunge sessions per week at 10-15°C is the evidence-backed sweet spot, aiming for roughly 11 minutes of total weekly cold exposure. Søberg et … Read more
KEY TAKEAWAY For most people, cold plunging after a workout is better for reducing soreness, but you should wait at least 4–6 hours after strength training to avoid blunting muscle … Read more
KEY TAKEAWAY: There’s very little direct research on cold plunges during pregnancy. A 2025 scoping review (Shawe et al., Lifestyle Medicine) found only six studies and eight reports worldwide and … Read more
KEY TAKEAWAY: Cold plunges show genuine promise for anxiety and depression, but the evidence isn’t as strong as social media suggests. Cold water immersion triggers a large release of norepinephrine … Read more
KEY TAKEAWAY: You can build a functional DIY cold plunge for as little as $50–$150 AUD (bathtub + ice) or create a permanent, always-cold chest freezer conversion for $400–$900 AUD. … Read more
