Health
What is REM sleep?
Rapid eye movement sleep associated with vivid dreams and memory processing.
Learn this term every day on iPhone.
One hand-written term. A real workplace example. Thirty seconds before your day gets loud.
In real work
REM sleep proportion varies night to night across healthy sleepers.
How is this different from Googling it?
Google gives a definition. Prompthaus pairs each term with how it shows up in standups, PRs, prompts, and design reviews—then quizzes you until the word sticks. One term a day on iPhone.