1 Curves: Average Heart Rate

Weekly Variability in Heart Rate

Heart rate follows a consistent circadian rhythm: lowest at night, rising in the morning, peaking in the afternoon, then decreasing in the evening. Differences between weekdays are modest compared to the strong variation between times of day. A slight weekend effect appears, particularly on Sunday morning and Saturday evening, which show slightly higher levels than other days.

The afternoon consistently remains the most active period with high and stable heart rate across the week.

Overall, the data reveals stable behavior patterns, a clear biological rhythm, and limited weekly variability, aside from small weekend deviations.

2 Box-and-Whisker Plot

Differences Between Times of Day

Time of Day Heart Rate Level
Night lowest (70–75 bpm)
Morning increasing (75–85 bpm)
Afternoon highest (85–90+ bpm)
Evening slight decrease (75–85 bpm)

3 Heatmap: Average Heart Rate per Weekday and Time of Day

Heart rate is consistently higher during the day—especially in the afternoon and evening—and reaches its lowest levels at night.

4 Daily Heart Rate Pattern by Weekday

Heart rate follows the same pattern across all days, with a clear rise from morning to afternoon and a slight drop in the evening.