S2 Day 039Life & Reflections1 min readChinese original ↗

What a cup of coffee does to your brain

一杯咖啡,对大脑做了什么?
TL;DR
  • I made a 62-second animation that draws caffeine’s wake-up effect as a game of “seat-saving”: after a cup of coffee you feel ready to work again, but your brain may not have actually rested.
  • Feeling alert and being rested are two different things. The one line I most want to leave you with: don’t mistake “not sleepy” for “slept enough.”
  • ChatGPT helped me talk through the topic and script, Codex helped with the code animation and rendering, and the voiceover is AI-generated; I had a hand in deciding the direction, the visual choices, and the final review.

3 p.m. I’ve read the same line three times.

After a cup of coffee, I feel like I can work again.

But did my brain actually get any rest?

I turned this into a little game of “seat-saving.”

In 62 seconds, a look at why caffeine wakes you up—and why feeling alert and being rested are two different things.

The one line I want to leave you with: don’t mistake “not sleepy” for “slept enough.”

What time do you usually have your last cup of coffee?

How it was made: ChatGPT helped me talk through the topic and script, and Codex helped with the code animation and rendering; the voiceover is AI-generated. I had a hand in deciding the direction, the visual choices, and the final review.

The visuals are simplified illustrations; the five-hour half-life is just an example, and it varies a lot from person to person. Sources: NHLBI (NIH), EFSA.

Written in Chinese and translated into English with the help of AI. Read the original