Vol. 42 — Wearables: What the Numbers Actually Mean

Your watch has opinions about your body. Some are useful. Most are guesses in a nice font.

Six chapters translating the numbers strapped to your wrist: heart-rate monitors, HRV, sleep trackers, glucose monitors, and the 'recovery scores' that dress an estimate up as a verdict. You'll learn what each metric can genuinely tell you, what it's quietly guessing, and how to stop optimisation anxiety from turning a training aid into a source of stress. The data isn't useless — but it isn't gospel either. This teaches you to read your wearable like a rough map, not a medical report, and to trust your training over a number that had a bad night too.

Includes the complete audiobook (MP3, AI-narrated).

Nelson Sequeira is a certified fitness professional with 15+ years of experience across Portugal, Bahrain, and the UAE. He is not a licensed nutritionist, physician, physiotherapist, or psychologist. Nothing in this volume replaces qualified medical or clinical advice. Consult a licensed healthcare professional before starting any new training, nutrition, or recovery program.