Guide
Why Am I More Anxious on Days I Have Coffee
Caffeine blocks adenosine receptors and raises cortisol and adrenaline. For slow caffeine metabolisers — people with the CYP1A2 slow variant — caffeine stays in the system significantly longer than for fast metabolise...
Why it matters
Caffeine blocks adenosine receptors and raises cortisol and adrenaline. For slow caffeine metabolisers — people with the CYP1A2 slow variant — caffeine stays in the system significantly longer than for fast metabolisers, extending its stimulatory effects well into the afternoon and evening. If you're a slow metaboliser, your morning coffee might be keeping your nervous system activated all day, making baseline anxiety worse without you connecting the two. Research published in JAMA found that slow metabolisers have a significantly different physiological response to the same dose of caffeine than fast metabolisers.
When Normal helps
Normal tracks your caffeine consumption and your anxiety levels over time. It finds whether there's a consistent relationship between your coffee consumption and your anxiety, and if so, whether it's the dose, the timing, or the combination with other habits that's driving it.
How Normal finds it
Tell Normal when you have coffee and how anxious you feel throughout the day. Over three to four weeks it finds whether caffeine is consistently associated with your anxiety. Many people discover that cutting off coffee at noon dramatically reduces their afternoon and evening anxiety within a week.
Related
Start with your body
Normal finds the pattern behind how you feel.
Tell Normal what happened in plain language. It connects your food, sleep, movement, stress, and symptoms over time.