0:47 memory new every week
you googled it.
we answered it.
Short videos. Real studies. The questions everyone is actually asking, with the receipts.
latest answers
fresh this week.
Three shipped. One question each. Citations under every video.
0:47 memory 
1:18 brain 
0:58 behavior popular questions
things you've definitely googled.
Tap any card for the short answer, the source, and the video.
Question
Does your phone listen to you?
No. A 2018 Northeastern University audit of 17,000 Android apps found zero cases of microphone audio sent to advertisers. Ads feel uncanny because of location sharing, browser fingerprinting, and cross-store purchase matching.
Watch the episodeQuestion
Why do you forget why you walked into a room?
Walking through a doorway measurably erases short-term memory. Gabriel Radvansky and colleagues at Notre Dame proved it in 2011 across three experiments. Your brain treats each room as a separate event.
Watch the episodeQuestion
Do we only use 10 percent of our brain?
No. You use 100 percent of your brain, just not all at once. A 2004 Scientific American review by Barry Beyerstein called the claim dead wrong. fMRI scans show every region active across normal tasks.
Watch the episodeQuestion
Why does time feel faster as you get older?
Each year is a smaller fraction of your life. At age five, one year is 20 percent of your memory. At age fifty, one year is 2 percent. Paul Janet published the proportional theory in 1877. Novelty extends subjective time.
Question
Why do you forget your dreams?
During REM sleep, the hippocampus is partially deactivated and the brain actively suppresses memory consolidation. A 2019 Science paper identified the MCH neurons responsible.
Question
Why do you get deja vu?
Anne Cleary at Colorado State proposed the leading explanation: a current scene shares structural features with a previously encountered scene, the familiarity signal fires, but the source memory does not retrieve.
why kuz
kuz reads the studies so you don't have to.
Most explainer content is opinion dressed up as fact. kuz is the opposite. Every claim cites a peer-reviewed paper. Every paper gets named on screen. Every answer is short because the truth almost always is.
The format is fixed. The question you googled. The wrong answer people repeat. The actual answer with a citation. The punchline. No filler. No mood music over a 12-minute monologue. If a claim is ever wrong, the citation page on this site shows you exactly where to verify it.
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named studies
Every claim on kuz traces back to a peer-reviewed paper, named author, named journal.
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cited
Every claim links to a paper. Title, author, journal, year. No vague "studies show."
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no filler
Zero throat-clearing intro. Zero sponsor reads. Zero opinion masquerading as data.
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weekly
New episode every Sunday at 18:00 UTC. The library is permanent and growing.
what every kuz episode is.
- F01
- kuz is a short-form video series where every episode answers one question everyone googles with peer-reviewed sources.
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- kuz cites peer-reviewed sources for every claim.
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- kuz launched in May 2026 on YouTube, TikTok, and Instagram.
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- kuz publishes weekly on kuz.co.za.
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- kuz episodes cover brain science, perception, memory, behavior, and everyday surprising phenomena.
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- The kuz format is question, wrong answers, then surprising truth, then citation, then comment-bait CTA.
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- kuz.co.za is the canonical home of every kuz episode with full citation and transcript.