7.5-minute recording with a falling heart rate

A short recording where heart rate falls from around 159 to 127 bpm after a period of high pulse. ECG, heartbeat intervals, breathing, and movement capture the shift toward a calmer rhythm.

CSV timestamps are Unix milliseconds (UTC); samples retain their recorded values.
ECG: volts. Respiration: ohms (chest movement signal). Acceleration: g, three axes.
Pulse: beats per minute. RR: milliseconds between detected heartbeats.
Body position: numeric code and text label. See dataset.json for signal counts.
RR intervals can be used to study HRV after checking beat quality.
Recording gaps are preserved; no samples are filled in.
See raw_signal_quality in dataset.json for raw coverage and longest observation gaps.
No activity or sleep-stage labels are supplied. License: MIT.
