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Think you know Brain Training?

Brain Training
Brain Training

Download LearnClash to accept the challenge and prove your knowledge in 1v1 quiz duels.

25
Questions
8
ELO tiers
Spaced repetition
3-question preview

Try a quick Brain Training round

Answer easy, medium, and hard questions. Install the app for the full 18-question duel.

Question 1 of 3 Easy

How does the brain physically clean itself of toxins during deep sleep?

Sample Brain Training questions

These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.

  1. 1 Easy

    How long can the brain survive without oxygen before permanent damage?

    Answer: Four minutes

  2. 2 Medium

    Where is about 95 percent of your body's serotonin produced?

    Answer: The gastrointestinal tract

  3. 3 Hard

    Which brain region is responsible for complex decision making and personality?

    Answer: Prefrontal cortex

  4. 4 Easy

    Why can doctors perform surgery on the brain while patients are awake?

    Answer: The brain has no pain receptors

  5. 5 Medium

    Which brain region grows larger in London taxi drivers after learning city maps?

    Answer: Hippocampus

  6. 6 Hard

    What is the brain's ability to reorganize itself by forming new connections?

    Answer: Neuroplasticity