The current conversation in AI wearables ignores the need for optimized inputs. If your nervous system is compromised, no ...

Once I understood this one sleep metric, everything I needed to do for better sleep made sense ...

Heart rate variability (HRV) is becoming one of the most useful tools for anyone trying to optimise their everyday fitness ...

Fitness trackers and smart watches are widely popular wearable devices that measure several types of health metrics, including step count, calories burned, sleep quality, Vo2 max and heart rate. As a ...

Heart rate variability (HRV) is the variation in the time between two consecutive heartbeats over a specific period. Doctors may use HRV as an indicator for certain aspects of a person’s health, ...

This article was made possible by the support of Yakult and produced independently by Scientific American’s board of editors. Earlier this year I got an Oura ring to track the state of my health. Soon ...