Cold & heat exposure
Cold-water immersion literature, contrast therapy, sauna+cold combinations, beginner ramp-up.
If you only read one
Cold exposure for beginners: a sane ramp-up
Starting from a warm shower, here is a slow build for people who have never done deliberate cold exposure, with the safety points the research repeatedly highlights.
Grade B · 2 min read · Last reviewed 2026-05-17
Cold exposure for beginners: a sane ramp-up
Evidence BStarting from a warm shower, here is a slow build for people who have never done deliberate cold exposure, with the safety points the research repeatedly highlights.
2 min read · Last reviewed 2026-05-17
Cold exposure and immunity: what the trials actually measured
Evidence CCold exposure is widely claimed to 'boost immunity'. What the controlled research actually shows on respiratory infections, immune markers, and the gap between mechanistic biology and clinical outcomes.
3 min read · Last reviewed 2026-05-19
Cold water exposure: a careful read of the human research
Evidence CCold plunges, ice baths, and cold showers — what the controlled human research shows on recovery, mood, brown adipose tissue, and where popular claims outrun the data.
2 min read · Last reviewed 2026-05-17
Contrast therapy: alternating hot and cold, and what it actually does
Evidence CHot/cold alternation has a long history in sports medicine. What the controlled trials show about recovery, circulation, and the question of whether it's better than either alone.
2 min read · Last reviewed 2026-05-17
Whole-body cryotherapy chambers: what the evidence does and doesn't show
Evidence DWBC chambers cool the skin to -110 to -140 °C for 2–3 minutes. Thinner evidence than ice baths despite premium pricing — what the trials actually report, the safety profile, and a fair comparison.
3 min read · Last reviewed 2026-05-19
Sauna + cold: combined protocols and what we know about them
Evidence CCombining heat and cold exposure — sequence, duration, and what gets tracked in the small but growing research base. Plus a careful note on cardiovascular load.
2 min read · Last reviewed 2026-05-17
The Wim Hof Method: a critical look at what's replicated
Evidence CBreathing + cold + mindset — the three pillars of the Wim Hof Method. What the controlled studies actually replicate, what gets overstated, and the real safety considerations.
3 min read · Last reviewed 2026-05-19
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