Life factors
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Summary for coffee
📔 Journal
Mentioned 15 days · avg mood 3.0/5 · last yesterday
Your body across 15 matching days with Garmin data
Body Battery high → low90 → 32
Sleep7.0h
Stress37
HRV67 ms
Resting HR54 bpm
Steps11,631
SpO₂96%
Respiration14 br/min
Deep sleep1.4h
Light sleep3.6h
REM sleep1.6h
Awake0.4h
Timeline
15 matching daysSun 23 Aug Journal · 1/5details
Matched coffee in this day's entry.
Body Battery high → low90 → 32
Sleep7.2h
Stress40
HRV76 ms
Resting HR49 bpm
Steps11,556
SpO₂96%
Respiration14 br/min
Deep sleep1.6h
Light sleep3.5h
REM sleep1.6h
Awake0.5h
Sat 22 Aug Journal · 2/5details
Matched coffee in this day's entry.
Body Battery high → low87 → 28
Sleep7.5h
Stress37
HRV73 ms
Resting HR52 bpm
Steps12,222
SpO₂96%
Respiration14 br/min
Deep sleep1.6h
Light sleep3.8h
REM sleep1.6h
Awake0.6h
Tue 18 Aug Journaldetails
Matched coffee in this day's entry.
Body Battery high → low87 → 24
Sleep7.3h
Stress34
HRV72 ms
Resting HR51 bpm
Steps11,738
SpO₂96%
Respiration14 br/min
Deep sleep1.4h
Light sleep3.5h
REM sleep1.8h
Awake0.6h
Sat 15 Aug Journal · 1/5details
Matched coffee in this day's entry.
Body Battery high → low86 → 27
Sleep7.4h
Stress35
HRV67 ms
Resting HR51 bpm
Steps12,271
SpO₂96%
Respiration14 br/min
Deep sleep1.4h
Light sleep4.0h
REM sleep1.7h
Awake0.3h
Thu 13 Aug Journal · 4/5details
Matched coffee in this day's entry.
Body Battery high → low89 → 27
Sleep6.7h
Stress36
HRV72 ms
Resting HR53 bpm
Steps13,604
SpO₂96%
Respiration13 br/min
Deep sleep1.4h
Light sleep3.5h
REM sleep1.3h
Awake0.5h
Sat 8 Aug Journal · 3/5details
Matched coffee in this day's entry.
Body Battery high → low92 → 28
Sleep7.2h
Stress38
HRV71 ms
Resting HR53 bpm
Steps11,484
SpO₂96%
Respiration14 br/min
Deep sleep1.3h
Light sleep4.0h
REM sleep1.7h
Awake0.2h
Mon 3 Aug Journaldetails
Matched coffee in this day's entry.
Body Battery high → low87 → 43
Sleep7.7h
Stress39
HRV68 ms
Resting HR54 bpm
Steps7,917
SpO₂96%
Respiration14 br/min
Deep sleep1.4h
Light sleep4.3h
REM sleep1.6h
Awake0.3h
Thu 30 Jul Journal · 3/5details
Matched coffee in this day's entry.
Body Battery high → low91 → 26
Sleep6.3h
Stress36
HRV66 ms
Resting HR53 bpm
Steps12,641
SpO₂96%
Respiration14 br/min
Deep sleep1.1h
Light sleep3.6h
REM sleep1.3h
Awake0.3h
Sat 25 Jul Journal · 2/5details
Matched coffee in this day's entry.
Body Battery high → low93 → 29
Sleep6.2h
Stress37
HRV65 ms
Resting HR53 bpm
Steps13,961
SpO₂96%
Respiration14 br/min
Deep sleep1.2h
Light sleep3.1h
REM sleep1.5h
Awake0.5h
Tue 14 Jul Journal · 5/5details
Matched coffee in this day's entry.
Body Battery high → low91 → 32
Sleep7.1h
Stress34
HRV66 ms
Resting HR54 bpm
Steps12,579
SpO₂96%
Respiration14 br/min
Deep sleep1.4h
Light sleep3.5h
REM sleep1.7h
Awake0.4h
Tue 7 Jul Journal · 3/5details
Matched coffee in this day's entry.
Body Battery high → low90 → 34
Sleep7.0h
Stress38
HRV64 ms
Resting HR55 bpm
Steps12,566
SpO₂96%
Respiration14 br/min
Deep sleep1.4h
Light sleep3.5h
REM sleep1.7h
Awake0.4h
Tue 30 Jun Journaldetails
Matched coffee in this day's entry.
Body Battery high → low94 → 33
Sleep6.3h
Stress36
HRV63 ms
Resting HR55 bpm
Steps13,870
SpO₂96%
Respiration14 br/min
Deep sleep1.2h
Light sleep3.4h
REM sleep1.3h
Awake0.4h
Sun 21 Jun Journal · 3/5details
Matched coffee in this day's entry.
Body Battery high → low87 → 47
Sleep7.7h
Stress44
HRV61 ms
Resting HR57 bpm
Steps8,495
SpO₂96%
Respiration14 br/min
Deep sleep1.7h
Light sleep3.8h
REM sleep1.8h
Awake0.4h
Tue 9 Jun Journal · 5/5details
Matched coffee in this day's entry.
Body Battery high → low89 → 47
Sleep7.2h
Stress41
HRV58 ms
Resting HR58 bpm
Steps7,188
SpO₂96%
Respiration14 br/min
Deep sleep1.4h
Light sleep3.5h
REM sleep1.6h
Awake0.6h
Wed 27 May Journal · 4/5details
Matched coffee in this day's entry.
Body Battery high → low91 → 27
Sleep6.6h
Stress35
HRV58 ms
Resting HR58 bpm
Steps12,367
SpO₂96%
Respiration15 br/min
Deep sleep1.2h
Light sleep3.4h
REM sleep1.6h
Awake0.3h
Biometrics on the days you mentioned coffee
15 days you mentioned it in the last 90 · Garmin data on 90 of 90 days
❤️ HRV +3.6ms same day (n=15 — likely a real pattern)
Deeper analysis — significance, timelines, dose-response & more
❤️ HRV
+3.6ms
66.7 vs 63.1ms
n=15 / 62
weekday-matched
likely a real pattern
HRV (ms)
▮ baseline ▮ HRV days
🛌 Sleep
+0.2h
7 vs 6.9h
n=15 / 62
weekday-matched
within your normal variation
Sleep (h)
▮ baseline ▮ Sleep days
😖 Stress
−0.7
37.4 vs 38
n=15 / 62
weekday-matched
within your normal variation
Stress
▮ baseline ▮ Stress days
1 metric unchanged on these days: Resting HR.
💓 Resting HRavg 54 bpm · latest 51 bpm
On your mention days: 54 bpm · about the same as baseline
Hide graph
💓 Resting HR over time — orange = your mention days
The lighter bars are your baseline average (53.9bpm ± 2.3 sd). Days from a day you mentioned it (0 = the day itself); where the Resting HR bar clears baseline is where the effect lands.
📔 Mood on the days you mentioned it
Mood coupling — does your mood track Resting HR on these days? (r=0.72, n=12)
Each dot is a mention day: that day's Resting HR vs the mood you logged.
Rhythm — when do these days fall? (longest run 2 days · typically every ~5 days)
Cohort days by weekday. A lopsided strip means the effect might be a weekday pattern — the stats above already switch to a weekday-matched baseline when that happens.
Exercise — do you train differently on these days?
You worked out on 40% of these days vs 12% otherwise — you train more often than usual. Average 17.5 min vs 5.5 min per day.
From your Garmin activities — a possible confound for the biometric changes above.
Notable days — the most unusual cohort days, worth re-reading
2026-08-23 ↗ 💓 Resting HR −5.2bpm (1.4 sd from normal)
2026-06-21 ↗ 😖 Stress +6.2 (1.3 sd from normal)
2026-08-18 ↗ 😖 Stress −4.4 (1.2 sd from normal)
Opens that day in your journal — the numbers point you there; the words stay in your vault.
How this is computed
Your cohort is the days you mentioned coffee. Each metric's average on those days is compared with every other day in the window that has Garmin data (your baseline). The significance chip comes from a permutation test — 1,000 random reshuffles of which days are cohort days; a pattern is flagged only when the real difference beats most reshuffles (and you have at least 8 cohort days). "The night after" shifts the comparison to the following day. When your cohort clusters on certain weekdays, the baseline is restricted to those weekdays.
Correlations from your own logs — not causation. Mentioning or taking something once is easily noise at small n. Garmin daily rollups only; your journal prose never leaves your vault.