How to Read the “This Week” Section

ion1. Sessions
Number of sessions completed this week.

2. Weekly HCT Goal
Your weekly target is 0.5%.

3. HCT Progress
You have achieved 0.265% of your 0.5% weekly target.
The gauge shows 44% completed.

4. SpO₂ Average
Top number = this week.
Smaller number below = last week.

This week is lower, which means a stronger stimulus.

5. Breath-hold Average
Top number = this week.
Smaller number below = last week.
The center marker shows last week’s level.

This week is 2 seconds longer per breath-hold.

6. RBC Production
Black dot = current week so far: 594.6 billion.
Center marker = last week: 1018 billion.

How to Read the Session Screen

1. Session
Total session time: 00:15:37.
The white timer 00:01:25 shows the current breath-hold in progress.

2. Time Lab
Logs every breath-hold together with its SpO₂ result.
White rows are breath-holds.
Black rows are recovery periods.

3. Breath-hold + Recovery
Example: breath-hold #2 is 1:25 with SpO₂ 81, followed by 1:05 recovery.
Breath-hold #3 is 1:35 with SpO₂ 80.

4. SpO₂ Level
Live SpO₂ is shown in black.
Avg 88 is the average across all completed reps.
The average updates after each rep.

5. Color Zones
Pure = non-responder.
Good = stimulus.
Perfect = best stimulus without fatigue.
Critical = not recommended.
Stop = end the session.

6. HR
70 is the live heart rate.
Min 45 is the lowest heart rate reached in the session.

7. SpO₂ Recovery Sec.
Shows the dip value, recovery time, and normalized value.
Example shown: 14 sec recovery to 98.

8. RBC / HCT %
134.74B is the estimated RBC stimulus.
0.024% is the estimated equivalent fraction of HCT stimulus.

9. Start / Lap / Stop
Press Start to begin. It changes to Lap.
Press Lap when a breath-hold ends to enter recovery, and press Lap again to begin the next breath-hold.
After the final SpO₂ dip and normalization, press Stop to save the session.