Credit = deposit · debit = withdrawal · gate = access without fuel. Horizon — acute moves today · structural moves baseline over weeks. Type — lever = act directly · readout = signal (actions live elsewhere).

Acute — today’s energy

1. Sleep (last night) · 10
2. Light (timing) · 9
3. Cortisol (acute stress) · 9
4. Dopamine (willingness) · 8
5. Adenosine · 7 · readout
6. Insulin / meals · 7
7. Caffeine · 6 · modifier
8. Food · 6
9. Hydration · 6 · climate
10. Oxytocin · 6
11. Heat · 5 · drain
12. Melatonin · 5 · readout
13. Leptin & ghrelin · 4 · readout

Structural — baseline

1. Sleep (habit) · 10
2. Allostatic load · 10
3. Exercise · 9
4. NAD+ / mitochondria · 7
5. Thyroid · 7 · check-if-off
6. Inflammation · 7
7. Cardiorespiratory · 6
8. Micronutrients · 6 · check-if-off
9. Serotonin · 6
10. Gut · 5

Highest-leverage move: protect consistent wake time + bright light early. Sleep is the pure deposit; light times the clock. Melatonin and adenosine are downstream readouts.