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Zoomed in time series plots for Copenhagen, Denmark (left) and the United Kingdom (right). (a) homestay duration, (b) maximum distance from home, (c) Fitbit step count, (d) maximum number of nearby devices, (e) total sleep duration, (f) bedtime, (g) heart rate, (h) unlock duration, (i) social app duration, (j) COVID-19 confirmed and death cases. Solid line: median; shade: 25th percentile to 75th percentile. dur: duration; WHO: World Health Organization.
