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July 26, 2025 • 10 mins

Biohacking a Post-Vacation Weight Loss Stall: What My Tracker Revealed



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🎙️ Podcast Summary: Breaking Another Weight Loss Plateau

In this episode, Brad Williams dives into his latest weight loss plateau challenge after returning from a 4-day vacation in Palm Springs. Despite sticking to his usual workouts and walking routine, Brad noticed a significant drop in his daily calorie burn—going from a consistent 2,600–3,200 range down to under 2,200, according to his Whoop tracker.


Brad used ChatGPT as a sounding board to troubleshoot the issue and uncovered several likely causes:


  • Post-vacation stress from alcohol, poor sleep, and inflammation.

  • Loss of glutathione supplementation, which previously boosted his metabolism and HRV (heart rate variability).

  • Possible thyroid downregulation and lowered BMR (Basal Metabolic Rate) due to stress.

  • Compounding effects from four consecutive days of alcohol and junk food, which his body couldn't recover from as quickly as a typical weekend.

Even after resuming clean eating and workouts, Brad's HRV remained suppressed, and his calorie expenditure stayed low. He suspects a combination of heat exposure, liver detox backlog, and sympathetic nervous system dominance may have extended his recovery.

  • Recovery from extended stress (even moderate drinking) can take 7–10+ days.

  • Your body adapts to short-term stress, but not always to extended ones.

  • Fitness trackers aren’t perfect, but their trends are powerful biofeedback tools.

  • ChatGPT and data analysis can reveal deeper insights like thyroid suppression that might not be immediately obvious.

  • Prioritize sleep, hydration, electrolytes, and zone 2 cardio.

  • Track calorie burn daily and adjust food intake to match.

  • Stay patient and avoid overcorrecting with extreme workouts.

  • Use tools like Whoop for trend tracking—even if the exact numbers aren't perfect.


If you're interested in online personal training or being a guest on my podcast, "Over 40 Fitness Hacks," you can reach me at brad@over40fitnesshacks.com or visit my website at:

www.Over40FitnessHacks.com


Additionally, check out my Yelp reviews for my local business, Evolve Gym in Huntington Beach, at https://bit.ly/3GCKRzV


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