Sensitivity shows up as “caffeine hits hard” or “caffeine lasts too long.” The fix is usually timing first, then dose.
Trouble falling asleep, lighter sleep, more anxiety, or feeling “wired but tired” can all suggest you need earlier timing.
Move caffeine earlier before you cut it out completely. Timing is the highest-leverage variable.
If timing isn’t enough, reduce dose or switch to smaller servings — especially later in the day.
No. This guide is educational. If you have health concerns or take medications, talk to a clinician.
Use the tools first, then come back here if you want the “why” behind the numbers.