Stimulant sensitivity is the difference between how strongly your body reacts to a given stimulant load.
Why it matters
Genetics, sleep debt, anxiety baseline, and timing can make the same dose feel very different across days.
Phenotype vs acute confounders
- phenotype: baseline sensitivity tendencies over time
- acute confounders: sleep loss, dehydration, high-stress context, skipped meals
Threshold map
- mild sensitivity: mild jitter, recover with hydration and timing adjustment
- moderate sensitivity: sleep fragmentation, clear anxiety or HR increase
- high sensitivity: repeated nocturnal arousal, GI distress, dangerous HR/BP symptoms
Taper and substitution options
- reduce dose in smaller steps
- shift dose earlier or later based on sleep tolerance
- swap to lower-potency alternatives before escalating complexity
Practical action step
When starting, pick one stimulant at a time and confirm tolerance for 3–5 days before combining.
Uncertainty and limits
- Evidence is limited on precise sensitivity thresholds across all stimulants.
- Evidence is limited on long-term tolerance drift with irregular schedules.
Cross-site references
How this appears in Unfair
Stimulant sensitivity settings affect timing, route suggestions, and alert behavior in recommendation outputs.
Clinical safety note
If high-sensitivity signs are persistent, pause stimulant compounds and consult a clinician before re-introduction.