DAY 6 — “Under 100. Perfect Score. Clearer Eyes.”
April 6th, 2026 — Eufy: 99.6kg. Hume Pod: 99.8kg. CPAP: 100/100. Gym: 541 kcal.
Some mornings you step on the scales and the number stares back at you like a small, quiet victory.
99.6 kilograms.
I have not been under 100 kilograms in longer than I am prepared to admit in print. The Eufy says 99.6 kg. The Hume Pod says 99.8 kg. For the first time in this experiment both scales agree I am on the right side of a number that, six days ago, felt further away than it does this morning.
I am not celebrating yet. 99.6 is not 88. But I am noting it, because data deserves to be acknowledged when it moves in the right direction.
And this morning, almost everything is moving in the right direction.
The CPAP: 100 Out of 100. A Perfect Score.
I have owned a CPAP machine since June 2025. For most of those nine months I have had a complicated and largely unsuccessful relationship with it. I even developed a theory — the kind of theory that sounds logical at midnight and embarrassing in daylight — that if I went to bed utterly wrecked at 2, 3, or 4am, sheer exhaustion would keep me unconscious long enough that I would not notice the mask and would therefore keep it on. The flaw in this strategy, which I somehow failed to anticipate, is that going to bed at 4am for an 8am wake-up gives the CPAP approximately four hours to work with — even on the nights it stayed on. It was not a great idea. The data confirms this.
The first night of this experiment — Night 1 on April 1st — produced just over an hour of mask usage before my sleeping self removed it. MyAir did not count it as a compliant night. It was a blip, not a beginning. We will not be counting it.
What we will be counting starts from Night 2: four consecutive compliant nights, and tonight will be the fifth.
Last night’s data:
Sunday 5th April — myAir:
- Usage: 8 hours 29 minutes
- Score: 100/100
- Mask seal: Good — 20/20
- Events per hour: 3.3 — 5/5
- Mask off: 2 — 5/5 (took it off twice, put it back on both times)
A score of 100 out of 100. The myAir app told me: “Excellent results, Jean-Luc. As you start to see the benefits in your life, you’ll never look back.”
For once, I am inclined to agree with the software.
The events-per-hour figure of 3.3 is the lowest full-night reading of the series — comfortably within the clinically normal range, and reflecting both a well-sealed mask and the positional vest keeping me off my back. My blood oxygen, recorded by the Hume Band, sat at 97–98% throughout the night. Best overnight SpO2 of the entire experiment.
The compliance arc from Night 2 onwards tells a clear and encouraging story:
| Night | Date | Usage | Score | SpO2 |
|---|---|---|---|---|
| Night 2 | 2 April | 6h 42m | 96/100 | 95–98% |
| Night 3 | 3 April | 4h 29m | 68/100 | 95–99% |
| Night 4 | 4 April | 6h 52m | 98/100 | 95–98% |
| Night 5 | 5 April | 8h 29m | 100/100 | 97–98% |
Four nights counted. Four nights of genuine, clinically meaningful CPAP compliance — something I have not managed in nine months of ownership. Tonight will be five. The machine that sat on my bedside table being ignored for the better part of a year is now doing its job. The only thing that changed was deciding to be accountable for it in public, every morning, in writing.
Funny how that works.
The Vision Thing — And What Proper Oxygenation Actually Feels Like
During my drive to the gym this morning I noticed something I cannot fully explain and am not going to over-interpret: my vision seemed noticeably clearer than usual. Sharper. More defined. The kind of clarity you associate with a good morning rather than a foggy one.
I do not know if I imagined it. I cannot prove it was the CPAP. But I can tell you that I have owned that machine for nine months, worn it sporadically, and this is the first morning I have noticed anything like it. After a full 8h 29m of treated breathing — 97–98% blood oxygen all night, every apnea event caught and corrected — every cell in my body received the oxygen it was supposed to receive. Including, apparently, the ones behind my eyes.
The science is not mysterious. Chronic overnight hypoxia causes oxidative stress, neurological fatigue, and impaired visual cortex function. Fix the oxygen. Fix the morning. It is not more complicated than that, and yet somehow it took six days of daily accountability — and a blog with readers — to make me keep the mask on long enough to find out.
Sleep: The Best Night of the Series
CPAP usage: 8h 29m Hume Band session: 8h 44m
Fitbit breakdown (23:20–08:13):
- Time asleep: 8h 1m — Excellent
- Sleep score: 91/100 — Excellent
- Awake: 51 min
- REM: 1h 56m
- Light: 5h 12m
- Deep: 52 min
Hume Band Sleep Quality: 100% — Excellent for the second consecutive night.
The Hume Band’s recovery metrics reflect what a proper night of oxygenated sleep does to a body that has been running on empty:
- HRV: 76.1 ms — highest of the entire series, up from 65.1 ms on Day 2
- Stress Level: 17.4 — lowest of the series
- Heart Rate: 98 bpm — elevated today, reflecting the gym session
- Recovery: 8 — the body is rebuilding
- Metabolic Capacity: 56 — up from 42 on Day 2
Every single recovery metric is at its best reading of the experiment. This is what six days of improving sleep, combined with proper CPAP therapy, does to the underlying physiology.
The Gym: 541 Calories, 62 Minutes, Max HR 185
Back to the gym at 9:30am — the first session since Wednesday’s 726-calorie morning. The hip has recovered sufficiently to allow it, and today’s TechnoGym readout was the most detailed yet:
- Calories burned: 541 kcal
- Duration: 62 minutes
- Distance: 3.80 km
- Average power: 102 watts
- Average speed: 127 spm
- Average heart rate: 164 bpm
- Max heart rate: 185 bpm
The max heart rate of 185 bpm deserves a note. At 55, the standard formula suggests a theoretical maximum of around 165 bpm. I hit 185. This is not uncommon — the 220-minus-age formula is a rough population average with significant individual variation — but it is worth monitoring. A cardiologist would tell you to keep an eye on it. I am keeping an eye on it. For now, the average of 164 bpm across 62 minutes is the more representative figure, and it confirms I am working at a genuinely challenging aerobic intensity.
541 calories in 62 minutes. Five minutes of stretching afterwards. Then home.
The Weight: Both Scales Agree, For Once
- Eufy smart scales: 99.6 kg ⬇️ First time under 100 kg
- Hume Pod: 99.8 kg ⬇️ Closest agreement yet
The Hume Pod weight chart now shows a clean downward line across three data points: 101.5 on 4th April, 101.0 on 5th April, 99.8 on 6th April. The trend is not ambiguous.
Eufy full metrics today:
| Metric | Reading | Rating |
|---|---|---|
| Weight | 99.6 kg | High |
| BMI | 27.8 | High |
| Body Fat % | 30.0% | Extremely High |
| Body Fat Mass | 29.80 kg | Extremely High |
| Visceral Fat | 15 | HIGH |
| Lean Body Mass | 69.80 kg | Low |
| Water | 49.9% | Low |
| BMR | 1,723 kcal | Low |
| Protein | 12.5% | Low |
| Subcutaneous Fat | 26.5% | High |
There it is. Visceral fat: 15. Down from 16 — where it has sat, unmoved, every single day since Day 1. It has taken six days of exercise, intermittent fasting, reduced alcohol, increased hydration, and proper sleep to move that number by a single point. But it moved. Visceral fat is famously the most dangerous and, encouragingly, the most responsive to lifestyle change of all fat types. The first point is always the hardest. It has gone.
Hume Pod body composition today:
- Right Arm: 23.1% — High
- Left Arm: 23.1% — High (symmetrical for the first time — no post-exercise volatility)
- Trunk: 25.3% — Standard (unchanged — the belly remains philosophically unbothered)
- Right Leg: 18.2% — Standard
- Left Leg: 18.2% — Standard
Hume Pod muscle mass:
- Trunk: 33.8 kg — Low (the core needs work — something to address as the gym sessions continue)
- Each leg: 12.1 kg — Standard
- Each arm: 3.9 kg — Standard
Metabolic Age: 51 years. Yesterday it said 50. Today 51. I am choosing to average these and conclude that metabolically I am somewhere in my early fifties. This remains the one Hume metric I accept without scepticism.
Blood Pressure: The Number Nobody Expected
This morning I used my blood pressure monitor for the first time in this experiment. Best of three readings:
117 / 78 mmHg — 96 bpm
This is, by clinical standards, essentially optimal. Normal blood pressure is defined as below 120/80. At 99.6 kg, with a visceral fat score of 15 and a BMI of 27.8, a reading of 117/78 is genuinely encouraging — and somewhat unexpected. It suggests that whatever damage the excess weight and poor sleep have been doing to my cardiovascular system, my blood pressure has remained well controlled.
I will track this weekly. If the weight continues to fall and the sleep continues to improve, I would expect this number to stay healthy or improve further.
The Mental Battle: Sweets, Prosecco, and Holding the Line
Last night I nearly gave in. The craving for sweets and junk food — that specific, irrational 10pm urge that arrives precisely when the day’s discipline is at its most depleted — was real and present and thoroughly inconvenient.
I did not give in.
I did have half a glass of prosecco. One. Half. This is not a failure. This is a 55-year-old Frenchman at the end of a week that included a 6am gym session, a wedding, a hip injury, and five consecutive nights of CPAP therapy. Half a glass of prosecco is, in the grand ledger of this experiment, essentially nothing.
The important number is the one that wasn’t consumed: the junk food. The craving that arrived and was refused and went away. That refusal is harder to measure than visceral fat and more important than half the metrics in this article.
Day 6 Summary
| Metric | Eufy | Hume Pod | Direction |
|---|---|---|---|
| Weight | 99.6 kg | 99.8 kg | ⬇️ Under 100 |
| Visceral Fat | 15 — High | 12 — Standard | ⬇️ First drop |
| Body Fat % | 30.0% Extr. High | 25.3% Standard | Contradicting |
| Metric | Value | Direction |
|---|---|---|
| CPAP score | 100/100 | ✅ Perfect |
| CPAP usage | 8h 29m | ✅ |
| SpO2 overnight | 97–98% | ✅ Best yet |
| Consecutive CPAP nights | 5 | ✅ Personal record |
| Sleep score (Fitbit) | 91/100 Excellent | ✅ |
| HRV | 76.1 ms | ✅ Best of series |
| Stress Level | 17.4 | ✅ Lowest of series |
| Gym session | 541 kcal / 62 min | ✅ |
| Max heart rate | 185 bpm | ⚠️ Monitor |
| Blood pressure | 117/78 | ✅ Optimal |
| Alcohol | ½ glass prosecco | ✅ Held the line |
| Junk food craving | Refused | ✅ |
Six days. 2.4 kg lost. Visceral fat moving for the first time. A perfect CPAP score. Blood pressure optimal. Vision clearer.
The data is no longer theoretical. The data is working.
Tonight: night six with the mask. The record keeps extending.
— Day 6 of 30
