📖 How are sugar and caffeine affecting your dopamine?

Phones aren’t the only thing spiking your dopamine. Food and drinks do it too.

1. Caffeine: The Illusion of Energy

• Caffeine doesn’t give you energy. It just blocks adenosine, the chemical that signals tiredness.

• When it wears off, adenosine comes back double → the crash.

• Too much caffeine also fragments your sleep, which kills dopamine recovery.

  👉 More coffee = worse sleep = lower dopamine baseline.

2. Sugar: The Spike-Crash Cycle

• Sugar spikes blood glucose → dopamine rises.

• Insulin clears it fast → glucose crashes.

• Result: exhaustion, irritability, cravings.

  👉 Exactly the same as social media: quick hit, then emptiness.

3. The Problem With Spikes

• Dopamine works best with steady, natural rises (effort, achievement, good rest).
• Stimulants hijack the system, creating artificial highs.
• The crashes make you crave more → endless loop.

4. The Fix: Stable Fuel