08/04/2026
You blame the coffee. You blame a bad night's sleep. But sometimes the 3pm crash isn't about either one — it's your cortisol rhythm, not your willpower.
Cortisol is supposed to rise in the morning and taper through the day. When that rhythm gets disrupted by chronic stress, poor sleep, or blood sugar swings, energy can dip hard in the afternoon — no matter how much caffeine you throw at it.
The fix isn't more coffee. It's understanding what your body is actually doing.
Symptoms are signals, not diagnoses. Test, don't guess.