Ethan Peterson·Oct 6Why Your Zone 2 Heart Rate Might Be WrongThe 220-minus-age formula behind most training zones was never built on a validation study
Scott MacDonald·Oct 5A Payout Raises Heart Rate Before the Next Bet Is Even a ChoiceReal-money play moves heart rate while the result is still open. After a win, the heart can stay up after the excitement rating has…
kathan vyas·Sep 16The N=1 Lab (Personal Health Sensing) Ch4: The most boring number on my watch turned out to run…The N=1 Lab, chapter four: my resting heart rate is the number my doctor has checked since I was a kid. It’s also, quietly, the master dial…A response icon1A response icon1
InBeingWellbyIrem Kunter, MD·Sep 14The Song Your Body Knows in a Language You Never LearnedPlay a lullaby from a culture a baby has never encountered, and its heart rate falls. Nobody taught it that.
Dmitri Konash·Sep 45 Free Heart Rate Monitor Apps That Do More Than Count Your PulseThis is a compressed version of our original post published on our website.
monu dixit·Jun 17Your Smart Watch and HeartDuring my project, I got a random zig-zag line, that looked like a 5-year-old child had drawn it, spiky, noisy, barely recognizable.
Vitor Gornati·Jun 11The Most Useful Health Metric You’re Probably IgnoringMost people who use a smartwatch check the same things every day:
Breath Lab·Apr 17The Humming Sound Is Not the Magic. A 2026 Study Points Somewhere Stranger.Bhramari Pranayama, the humming bee breath, gets its reputation from the buzz. You close your ears, close your mouth, breathe out slowly…
CuriousCatalyst·Dec 14, 2025Your Resting Heart Rate Predicts When You’ll Die (And Your Wearable Actually Measures It Correctly)Resting heart rate predicts longevity, and modern wearables give you accurate readings you can trust.
Christian Rodrigues·Dec 11, 2025Heart Beat Visualizer/MonitorFor my project i’ve been assigned to create my own choice of technology using the Arduino uno. With this assignment we have the ability to…
