biometric climbing monitors 2025-09-16T20:10:09Z
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Dawn hadn't yet scratched the horizon when I started ascending the couloir, ice screws chiming against my harness like morbid wind chimes. My headlamp carved a fragile cone of light in the predawn blackness, each breath crystallizing before vanishing into the void. This solo climb in the Bernese Alps was meant to be cathartic – until my primary ice axe sheared at the hilt three pitches up. The sudden recoil slammed me against the frozen wall, crampons screeching against blue ice as my heart trie