Calibre Biometrics have promised a revolutionary at home sensor that reaches lab-level accuracy for VO2max and RMR test. It finally arrived. Here is the unboxing video. It’s much smaller than I thought. I will post VO2max and RMR test videos as soon as it’s charged!
Get the next one in your inbox
I write about longevity, training, and preventive health weekly — without the guru worship. Free, no spam, unsubscribe whenever.
About Gunnar
Gunnar is 53. He lost about 170 pounds, trains in a garage gym, and writes DadStrengthDaily from personal experience, citing primary sources where he can. He also moderates r/ProactiveHealth. He is not a doctor, and nothing here is medical advice. Talk to your own doctor before acting on anything, especially GLP-1s, TRT, blood pressure, sleep apnea, and cancer screening.
