wearable technology

I trusted my watch’s wrist reading through every set of squats just to skip the chest strap: the graph showed what it had really been counting

by
I trusted my watch's wrist reading through every set of squats just to skip the chest strap: the graph showed what it had ...

Your smartwatch’s heart rate spike during heavy squats isn’t tracking your cardiovascular effort—it’s tracking your grip. Optical sensors mistake wrist tension and rep tempo for heartbeats, a phenomenon called cadence lock. Learn why chest straps outperform wrist devices and how to spot fake readings.

I slept eight hours every night and blamed the mattress: the morning I opened my tracker’s overnight heart-rate graph, I understood what was really breaking my nights

by
I slept eight hours every night and blamed the mattress: the morning I opened my tracker's overnight heart-rate graph, I u...

Eight hours in bed felt like a sleepless night until a heart-rate tracker revealed the truth: a restless line that never dipped as it should. Alcohol, stress, and lifestyle habits were sabotaging sleep quality—not the mattress. Learn what your tracker’s overnight graph is really telling you.