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12 Months to Marathon - Episode 56 - The Danger of Data
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Let’s be honest, these devices are amazing. I love my Garmin. Heart rate zones, VO2 max estimates, sleep tracking, HRV, race predictions, it’s all powerful stuff. And it can help guide our training in meaningful ways.
But there’s a fine line between using the data and being used by it.
When you start planning your day based on whether your watch says you slept well… or skipping a session because your 'body battery' says you're tired, even though you feel great, you’re crossing into dangerous territory.
These devices are tools, not truth.
Let’s go back to last night. My watch…
The skinny
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