Smartphones have shifted health research from sporadic doctor visits to...

https://angelowlnv711.yousher.com/why-do-health-trends-spread-in-days-now-the-death-of-slow-science

Smartphones have shifted health research from sporadic doctor visits to continuous, real-world data collection. Wearables now track everything from heart rate variability to sleep patterns, giving users a granular view of their own bodies