September 9, 2025
Wait for the beep, then respond as fast as you can — see how quickly your brain processes audio cues and triggers responses.
September 5, 2025
Connect numbered circles in order (Part A) or alternate between numbers and letters (Part B) — test your cognitive flexibility and set-shifting ability.
Wait for green, then click as fast as you can — see how quickly your brain processes visual cues and triggers responses.
August 28, 2025
Click start, read naturally, then answer a few questions to see your words per minute (WPM) and comprehension score.
Work deeply for 52 minutes, then rest for 17 minutes — the science-backed rhythm your brain wants.
A free, online tool to create your personalized spaced repetition schedule.
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