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0ddd48a1452ccfb139b909bb559ec5b3New York, April 20 – Wearable sensors, such as smartwatches and fitness bands, can reveal a person’s physiological response to the Covid-19 vaccination, according to a study.

The study, published in npj Digital Medicine, analysed sensor data on sleep, activity and heart rate from over 5,600 individuals.

The findings showed that the average resting heart rate of participants significantly increased the day following vaccination, peaking two days post-vaccination, and returning to normal four days after the first dose and six days after the second.

The effect appeared to be stronger after the second dose of the Moderna vaccine, compared to the Pfizer-BioNTech vaccine, and more pronounced in younger individuals.