Do fitness trackers still work if you have tattoos?
(engadget.com)
1.
2.
Which coworker stresses you out most? This WHOOP user built a stress leaderboard
(androidauthority.com)
3.
Google wants your phone to track your heart rate by simply looking at you
(androidauthority.com)
4.
6.
Your phone can use tiny skin-colour changes to measure your heart rate
(feeds.nature.com)
7.
Oura shrunk its new ring by 40% and made it look a lot more like jewelry
(feeds.feedburner.com)
8.
10.
11.
Sauna effect on heart rate
(news.ycombinator.com)
12.
Show HN: Saunas lower nighttime heart rate more than exercise (n=59,000)
(news.ycombinator.com)
13.
From birds to brains: My path to the fusiform face area (2024)
(news.ycombinator.com)
14.
The Last Quiet Thing
(news.ycombinator.com)
15.
8 things Google’s Whoop competitor needs before I’ll buy it
(androidauthority.com)
16.
Our Favorite Budget Smartwatch Is $69
(wired.com)
17.
Our Favorite Budget Smartwatch is $69
(wired.com)
18.
19.
Whoop’s fitness band is cool. Can it stay cool as the company grows?
(techcrunch.com)
20.
21.
Stanford researchers report first recording of a blue whale's heart rate (2019)
(news.ycombinator.com)
23.
25.
26.
27.
28.
29.
30.
The best cheap fitness trackers for 2026
(engadget.com)