Fitbits, smart watches and other wearable devices are helping scientists track the lingering effects of COVID-19 on the human body.
Using freely volunteered data from hundreds of fitness and health sensors, researchers have now found it takes about two or three months for the body to recover from COVID-19.
The physical symptoms identified varied from individual to individual, but they usually included a faster resting heart rate, excess sleep, or reduced physical activity.
A small subset of those who contracted the virus, roughly 14 percent, had it even harder than that. These ‘long haulers’, as they have become known, showed unusually fast resting heart rates that stuck around for more than four months.