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2026-02-12 11:22:01 UTC

niallduane on Nostr: Cold exposure isn’t about toughness — it’s about mitochondria. Cold Water ...

Cold exposure isn’t about toughness — it’s about mitochondria.

Cold Water Immersion upregulates PGC-1α signaling → supporting mitochondrial biogenesis and metabolic flexibility.

Caveat: regular post-lift ice baths can blunt mTOR signaling and reduce hypertrophy over time.

Use cold with intent:
Build muscle → separate it from lifting.
Build resilience → lean into it.

Signal drives adaptation.