Life factors
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Summary for coffee
📔 Journal
Mentioned 15 days · avg mood 2.8/5 · last yesterday
Your body across 15 matching days with Garmin data
Body Battery high → low89 → 31
Sleep7.1h
Stress37
HRV66 ms
Resting HR53 bpm
Steps11,693
SpO₂96%
Respiration14 br/min
Deep sleep1.5h
Light sleep3.6h
REM sleep1.6h
Awake0.4h
Timeline
15 matching daysSun 23 Aug Journal · 4/5details
Matched coffee in this day's entry.
Body Battery high → low93 → 31
Sleep6.7h
Stress34
HRV72 ms
Resting HR49 bpm
Steps11,566
SpO₂96%
Respiration14 br/min
Deep sleep1.3h
Light sleep3.8h
REM sleep1.3h
Awake0.3h
Sat 22 Aug Journal · 4/5details
Matched coffee in this day's entry.
Body Battery high → low93 → 27
Sleep7.1h
Stress35
HRV70 ms
Resting HR52 bpm
Steps12,233
SpO₂96%
Respiration14 br/min
Deep sleep1.3h
Light sleep3.7h
REM sleep1.7h
Awake0.4h
Tue 18 Aug Journal · 3/5details
Matched coffee in this day's entry.
Body Battery high → low86 → 24
Sleep7.6h
Stress35
HRV68 ms
Resting HR50 bpm
Steps13,224
SpO₂96%
Respiration14 br/min
Deep sleep1.5h
Light sleep4.0h
REM sleep1.6h
Awake0.5h
Sat 15 Aug Journal · 5/5details
Matched coffee in this day's entry.
Body Battery high → low95 → 52
Sleep6.6h
Stress42
HRV75 ms
Resting HR55 bpm
Steps6,991
SpO₂96%
Respiration14 br/min
Deep sleep1.3h
Light sleep3.7h
REM sleep1.4h
Awake0.3h
Fri 14 Aug Journal · 4/5details
Matched coffee in this day's entry.
Body Battery high → low85 → 37
Sleep7.8h
Stress47
HRV67 ms
Resting HR52 bpm
Steps9,124
SpO₂96%
Respiration14 br/min
Deep sleep1.6h
Light sleep3.9h
REM sleep1.7h
Awake0.6h
Fri 7 Aug Journaldetails
Matched coffee in this day's entry.
Body Battery high → low85 → 22
Sleep7.6h
Stress35
HRV74 ms
Resting HR51 bpm
Steps13,638
SpO₂96%
Respiration14 br/min
Deep sleep1.6h
Light sleep3.7h
REM sleep1.6h
Awake0.6h
Tue 4 Aug Journal · 3/5details
Matched coffee in this day's entry.
Body Battery high → low88 → 28
Sleep7.1h
Stress36
HRV66 ms
Resting HR52 bpm
Steps12,838
SpO₂96%
Respiration14 br/min
Deep sleep1.6h
Light sleep3.3h
REM sleep1.7h
Awake0.5h
Fri 31 Jul Journaldetails
Matched coffee in this day's entry.
Body Battery high → low88 → 26
Sleep6.4h
Stress34
HRV72 ms
Resting HR53 bpm
Steps12,890
SpO₂96%
Respiration14 br/min
Deep sleep1.5h
Light sleep3.0h
REM sleep1.5h
Awake0.5h
Sat 25 Jul Journal · 1/5details
Matched coffee in this day's entry.
Body Battery high → low91 → 47
Sleep7.8h
Stress44
HRV63 ms
Resting HR56 bpm
Steps7,577
SpO₂96%
Respiration14 br/min
Deep sleep1.4h
Light sleep4.1h
REM sleep1.9h
Awake0.4h
Wed 15 Jul Journaldetails
Matched coffee in this day's entry.
Body Battery high → low86 → 26
Sleep6.8h
Stress34
HRV59 ms
Resting HR53 bpm
Steps13,261
SpO₂96%
Respiration15 br/min
Deep sleep1.4h
Light sleep3.7h
REM sleep1.5h
Awake0.2h
Wed 8 Jul Journal · 2/5details
Matched coffee in this day's entry.
Body Battery high → low89 → 29
Sleep7.4h
Stress37
HRV62 ms
Resting HR54 bpm
Steps11,515
SpO₂97%
Respiration14 br/min
Deep sleep1.6h
Light sleep3.8h
REM sleep1.6h
Awake0.4h
Tue 30 Jun Journal · 1/5details
Matched coffee in this day's entry.
Body Battery high → low84 → 28
Sleep6.7h
Stress38
HRV65 ms
Resting HR54 bpm
Steps13,610
SpO₂96%
Respiration14 br/min
Deep sleep1.3h
Light sleep3.5h
REM sleep1.4h
Awake0.6h
Sat 20 Jun Journal · 1/5details
Matched coffee in this day's entry.
Body Battery high → low91 → 33
Sleep6.3h
Stress36
HRV56 ms
Resting HR56 bpm
Steps12,823
SpO₂96%
Respiration14 br/min
Deep sleep1.3h
Light sleep3.1h
REM sleep1.4h
Awake0.5h
Wed 10 Jun Journal · 4/5details
Matched coffee in this day's entry.
Body Battery high → low86 → 28
Sleep6.7h
Stress38
HRV60 ms
Resting HR56 bpm
Steps11,805
SpO₂96%
Respiration14 br/min
Deep sleep1.5h
Light sleep3.2h
REM sleep1.6h
Awake0.3h
Thu 28 May Journal · 1/5details
Matched coffee in this day's entry.
Body Battery high → low88 → 32
Sleep7.3h
Stress36
HRV56 ms
Resting HR57 bpm
Steps12,293
SpO₂96%
Respiration14 br/min
Deep sleep1.6h
Light sleep3.6h
REM sleep1.7h
Awake0.4h
Biometrics on the days you mentioned coffee
15 days you mentioned it in the last 365 · Garmin data on 90 of 365 days
💓 Resting HR −1.3bpm same day (n=15 — weak hint)
❤️ HRV +2.4ms same day (n=15 — weak hint)
Deeper analysis — significance, timelines, dose-response & more
💓 Resting HR
−1.3bpm
53.1 vs 54.4bpm
n=15 / 75
weak hint
Resting HR (bpm)
▮ baseline ▮ Resting HR days
❤️ HRV
+2.4ms
65.7 vs 63.4ms
n=15 / 75
weak hint
HRV (ms)
▮ baseline ▮ HRV days
😖 Stress
−1
37.4 vs 38.4
n=15 / 75
within your normal variation
Stress
▮ baseline ▮ Stress days
1 metric unchanged on these days: Sleep.
💓 Resting HRavg 54 bpm · latest 49 bpm
On your mention days: 53 bpm · −1 vs baseline
Hide graph
💓 Resting HR over time — orange = your mention days
The lighter bars are your baseline average (54.4bpm ± 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=-0.49, 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 ~7 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 33% of these days vs 13% otherwise — you train more often than usual. Average 14.5 min vs 6.1 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
2026-08-14 ↗ 😖 Stress +8.3 (1.5 sd from normal)
2026-08-23 ↗ 💓 Resting HR −5.5bpm (1.4 sd from normal)
2026-08-07 ↗ ❤️ HRV +9.9ms (1.3 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.