Eight Sleep Pod 4 review: 30 days of HRV and resting heart rate data
As a bio-hacking researcher affiliated with the International Longevity Alliance (ILA), I subjected the Eight Sleep Pod 4 to a rigorous 30-day field evaluation—tracking every fluctuation in Heart Rate Variability (HRV) and Resting Heart Rate (RHR) to determine whether this device genuinely earns its place in a serious longevity protocol. What follows is not a … Read more