Daily Science Fact or Myth Challenge

Q: How do you verify the facts in Fact or Myth?

Every card in our core library undergoes peer-review verification referencing academic sources, scientific journals (Nature, Science, NASA, Smithsonian), and primary historical documents.

Q: Is Fact or Myth really 100% ad-free?

Yes! Fact or Myth has zero banner ads, zero popups, and zero interstitial video ads. The game is funded voluntarily by community patron tips.

Q: Do trivia cards repeat?

No. Our intelligent deck engine tracks your answered questions locally so you never see the same card twice unless you explicitly choose to reset your deck.

Q: Is it a fact or a myth that Interrupting a mobile game with an advertisement causes a rapid increase in cortisol that temporarily impairs short‑term memory?

FACT: A 2022 study measured salivary cortisol in participants who played a puzzle game with and without ad breaks. The ad‑interrupted group showed a 15% cortisol rise and a 7% drop in a word‑recall test administered immediately after. The effect dissipated after 10 minutes. Key Takeaway: Ads can stress your brain and hurt memory, even for a few seconds. (Source: Psychoneuroendocrinology (2022))

Q: Is it a fact or a myth that Playing ad‑free trivia apps for 30 minutes a day raises your IQ by roughly ten points after one week?

MYTH: Intelligence quotient is a stable construct that changes only modestly over long periods with extensive training. No peer‑reviewed trial has shown a ten‑point rise after a single week of casual trivia play. Reported gains in commercial ads are anecdotal and lack control groups. Key Takeaway: Trivia apps are fun, but they don’t deliver instant IQ boosts. (Source: Myth (no scientific support))

Q: Is it a fact or a myth that Using a free, ad‑free puzzle game produces a steadier dopamine response than the same game with intermittent ads?

FACT: Functional MRI in a 2021 Nature Communications experiment showed that participants playing an ad‑free version of a match‑3 game had continuous striatal dopamine signaling, whereas ad‑supported versions caused sharp dips after each ad, reflecting reward prediction error. The smoother signal correlated with longer play sessions and higher self‑reported enjoyment. Key Takeaway: Ad‑free games keep your reward system smoother. (Source: Nature Communications (2021))

Q: Is it a fact or a myth that FreeCell is the only digital card game that has been proven to improve executive function more than any other game type?

MYTH: Meta‑analyses of cognitive training show that many strategy games, including chess, Sudoku, and real‑time strategy titles, yield comparable gains in working memory and task switching. No controlled trial isolates FreeCell as uniquely effective; claims stem from marketing rather than peer‑reviewed evidence. Key Takeaway: FreeCell is beneficial, but not uniquely superior. (Source: Myth (no peer‑reviewed evidence))

Q: Is it a fact or a myth that Deep (slow-wave) sleep triggers a surge in muscle protein synthesis that exceeds the anabolic response to resistance exercise alone?

FACT: During slow-wave sleep, growth hormone peaks and the mTOR pathway is activated, boosting amino acid uptake in muscle fibers. A 2022 study showed that participants who obtained ≥20 minutes of uninterrupted deep sleep post‑exercise had 30 % higher fractional synthetic rate than those who slept only light stages. This effect is independent of total sleep time. Key Takeaway: Deep sleep is a potent driver of muscle repair, rivaling workouts. (Source: Journal of Physiology (2022))

Q: Is it a fact or a myth that Listening to 40 Hz binaural beats while you sleep can substitute for deep‑sleep slow waves and fully restore the brain’s glymphatic clearance?

MYTH: While 40 Hz auditory stimulation can entrain cortical gamma activity in wakefulness, it does not generate the large‑amplitude, low‑frequency slow waves characteristic of deep sleep. Glymphatic flow is driven by the oscillatory pressure changes of slow waves, which binaural beats fail to replicate, as shown in a 2021 Frontiers study. Key Takeaway: Binaural beats are not a shortcut to deep‑sleep benefits. (Source: Frontiers in Human Neuroscience (2021))

Q: Is it a fact or a myth that The Eight Sleep mattress, which cools or warms the bed in real time, can increase the proportion of deep sleep by up to 15 % compared to a conventional mattress?

FACT: Thermoregulation is a key driver of sleep stage transitions; a cooler skin temperature promotes slow‑wave activity. In a 2023 randomized crossover trial, participants using the Eight Sleep system showed a 14.8 % rise in N3 minutes without changes in total sleep time, confirming the efficacy of stage‑targeted heating/cooling. Key Takeaway: Dynamic temperature control can meaningfully boost deep sleep. (Source: Nature Biomedical Engineering (2023))

Question 1

Interrupting a mobile game with an advertisement causes a rapid increase in cortisol that temporarily impairs short‑term memory.

Accepted Answer

Fact

Answer

Myth

Question 2

Playing ad‑free trivia apps for 30 minutes a day raises your IQ by roughly ten points after one week.

Accepted Answer

Myth

Answer

Fact

Question 3

Using a free, ad‑free puzzle game produces a steadier dopamine response than the same game with intermittent ads.

Accepted Answer

Fact

Answer

Myth

Question 4

FreeCell is the only digital card game that has been proven to improve executive function more than any other game type.

Accepted Answer

Myth

Answer

Fact

Question 5

Deep (slow-wave) sleep triggers a surge in muscle protein synthesis that exceeds the anabolic response to resistance exercise alone.

Accepted Answer

Fact

Answer

Myth

Question 6

Listening to 40 Hz binaural beats while you sleep can substitute for deep‑sleep slow waves and fully restore the brain’s glymphatic clearance.

Accepted Answer

Myth

Answer

Fact

Question 7

The Eight Sleep mattress, which cools or warms the bed in real time, can increase the proportion of deep sleep by up to 15 % compared to a conventional mattress.

Accepted Answer

Fact

Answer

Myth

Question 8

Wrist‑worn sleep trackers that measure only movement can reliably distinguish REM from deep sleep, providing data comparable to polysomnography.

Accepted Answer

Myth

Answer

Fact

Question 9

The master circadian clock in the suprachiasmatic nucleus can reset peripheral clocks via melatonin even when no light cues are present.

Accepted Answer

Fact

Answer

Myth

Question 10

Humans possess a fixed 24‑hour circadian period that cannot be altered by genetics or environment.

Accepted Answer

Myth

Answer

Fact

Question 11

Time‑restricted feeding can shift the phase of liver clock genes without changing the central SCN rhythm.

Accepted Answer

Fact

Answer

Myth

Question 12

Any exposure to blue light at night, no matter how dim, will suppress melatonin production.

Accepted Answer

Myth

Answer

Fact

Question 13

Deep (slow-wave) sleep triggers a surge of growth hormone that accounts for up to 30% of nightly muscle protein synthesis.

Accepted Answer

Fact

Answer

Myth

Question 14

Listening to 40 Hz binaural beats while falling asleep can speed up cellular wound healing by directly entraining mitochondrial activity.

Accepted Answer

Myth

Answer

Fact

Question 15

The Eight Sleep smart mattress, which cools the bed during the first half of the night, extends participants’ deep‑sleep time by an average of 18 %.

Accepted Answer

Fact

Answer

Myth

Question 16

A single sunrise simulation from a Hatch Sleep lamp can fully reset a traveler’s circadian rhythm, erasing jet lag after one night.

Accepted Answer

Myth

Answer

Fact

Question 17

Intensive, adaptive visual attention training on BrainHQ speeds neural processing by ~15% in adults over 60.

Accepted Answer

Fact

Answer

Myth

Question 18

Playing Peak’s daily 5‑minute puzzles permanently expands your working memory capacity.

Accepted Answer

Myth

Answer

Fact

Question 19

Targeted memory reactivation during slow‑wave sleep can double recall of learned word‑pair lists.

Accepted Answer

Fact

Answer

Myth

Question 20

NeuroNation’s language games can rewire Broca’s area, enabling fluent speech in a new language after one week of training.

Accepted Answer

Myth

Answer

Fact

Question 21

Peripheral organs such as the liver and lungs maintain self-sustained circadian oscillations even when the brain’s master clock is destroyed.

Accepted Answer

Fact

Answer

Myth

Question 22

A brief pulse of blue light (< 30 lux) at night can shift the human circadian phase more than a tenfold brighter white light exposure.

Accepted Answer

Fact

Answer

Myth

Question 23

All humans have an exact 24‑hour internal circadian period that never varies.

Accepted Answer

Myth

Answer

Fact

Question 24

Drinking a cup of coffee at breakfast permanently resets the circadian clock for the entire day.

Accepted Answer

Myth

Answer

Fact

Question 25

Posterior fossa decompression for Chiari I malformation leads to symptom improvement in roughly 70% of patients within the first year.

Accepted Answer

Fact

Answer

Myth

Question 26

The total cost of a brain decompression procedure in the United States commonly exceeds $150,000 when hospital, surgeon, anesthesia, and postoperative rehabilitation are included.

Accepted Answer

Fact

Answer

Myth

Question 27

Brain decompression can be performed endoscopically through the nasal cavity, avoiding any skull opening.

Accepted Answer

Myth

Answer

Fact

Question 28

After brain decompression surgery, patients must refrain from all physical activity for an entire year to ensure proper healing.

Accepted Answer

Myth

Answer

Fact

Question 29

Peripheral organs such as the liver and kidneys maintain self-sustained circadian oscillations that can stay synchronized to each other through feeding schedules even when the suprachiasmatic nucleus is destroyed.

Accepted Answer

Fact

Answer

Myth

Question 30

Melatonin levels always reach their maximum precisely at 12 a.m. for every individual, regardless of their sleep‑wake schedule.

Accepted Answer

Myth

Answer

Fact

Question 31

A single dose of 200 mg caffeine taken at 2 p.m. can delay the onset of melatonin production by about 30–45 minutes without altering total sleep duration.

Accepted Answer

Fact

Answer

Myth

Question 32

A brief exposure to bright blue light at night can instantly shift a person’s circadian clock by 12 hours, turning night‑owls into early birds.

Accepted Answer

Myth

Answer

Fact

Question 33

Deep (slow‑wave) sleep triggers a surge of growth hormone that drives muscle protein synthesis and tissue repair.

Accepted Answer

Fact

Answer

Myth

Question 34

Listening to 432 Hz tones while you sleep speeds up cellular regeneration more than sleeping in silence.

Accepted Answer

Myth

Answer

Fact

Question 35

Eight Sleep’s temperature‑controlled mattress shortens the time to reach deep sleep by about 12 minutes, boosting next‑day memory performance.

Accepted Answer

Fact

Answer

Myth

Question 36

A single night of Hatch Sleep’s sunrise simulation can fully reset your circadian rhythm, erasing jet lag instantly.

Accepted Answer

Myth

Answer

Fact

Question 37

Playing ad‑free mobile games improves working memory more than playing the same games with intermittent ads.

Accepted Answer

Fact

Answer

Myth

Question 38

Seeing ads during a game triggers a larger dopamine surge than winning a level, because ads are unexpected rewards.

Accepted Answer

Myth

Answer

Fact

Question 39

Playing games with flashing ads at night suppresses melatonin more than playing the same games without ads.

Accepted Answer

Fact

Answer

Myth

Question 40

A week of daily, ad‑free trivia gaming can permanently raise a person’s IQ by five points.

Accepted Answer

Myth

Answer

Fact

Question 41

Ad‑free mobile games boost sustained attention more than identical games punctuated by banner ads.

Accepted Answer

Fact

Answer

Myth

Question 42

Solving trivia questions releases a neurotransmitter unique to quizzing, distinct from dopamine.

Accepted Answer

Myth

Answer

Fact

Question 43

A 30‑second burst of novel visual stimuli in a mobile puzzle can temporarily counteract the circadian dip in alertness.

Accepted Answer

Fact

Answer

Myth

Question 44

Playing any smartphone game for more than 30 minutes permanently damages fine‑motor coordination.

Accepted Answer

Myth

Answer

Fact

Question 45

Regularly playing adaptive working‑memory games can increase gray‑matter volume in the dorsolateral prefrontal cortex of adults

Accepted Answer

Fact

Answer

Myth

Question 46

Brain‑training apps that promise a 15‑point IQ boost deliver lasting improvements in general intelligence

Accepted Answer

Myth

Answer

Fact

Question 47

Brief daily mindfulness attention drills enhance the brain's ability to filter irrelevant visual stimuli, as indexed by a larger N2pc ERP component

Accepted Answer

Fact

Answer

Myth

Question 48

NeuroNation's language‑learning puzzles permanently increase the number of neurons in the hippocampus of older adults

Accepted Answer

Myth

Answer

Fact

Question 49

During deep (slow‑wave) sleep, the brain’s glymphatic system clears metabolic waste up to 60 % more efficiently than when we are awake.

Accepted Answer

Fact

Answer

Myth

Question 50

Caffeine consumed after 2 PM does not affect nighttime sleep because the body metabolizes it instantly.

Accepted Answer

Myth

Answer

Fact

Question 51

The human gut virome contains more viral particles than bacterial cells and can actively shape systemic immune responses.

Accepted Answer

Fact

Answer

Myth

Question 52

Left‑handed individuals have a mirror‑image brain lateralization that makes them naturally superior at spatial puzzles.

Accepted Answer

Myth

Answer

Fact

Question 53

Consuming a protein‑rich breakfast timed to the early circadian phase boosts muscle protein synthesis more than the same protein intake at night, even with identical total calories.

Accepted Answer

Fact

Answer

Myth

Question 54

Drinking a cup of coffee after 2 p.m. never disrupts deep‑sleep architecture because the body builds tolerance to caffeine’s effects.

Accepted Answer

Myth

Answer

Fact

Question 55

Time‑restricted feeding (eating within an 8‑hour window) lowers LDL‑cholesterol independent of calorie reduction by re‑programming hepatic circadian genes.

Accepted Answer

Fact

Answer

Myth

Question 56

Eating sugary foods in the morning guarantees superior cognitive performance throughout the day, a principle known as the “sweet science” of timing.

Accepted Answer

Myth

Answer

Fact

Question 57

Microvascular decompression surgery permanently cures trigeminal neuralgia in over 90% of patients.

Accepted Answer

Myth

Answer

Fact

Question 58

Playing a short, timer‑free trivia game before bed can improve sleep onset latency by up to 15 minutes.

Accepted Answer

Fact

Answer

Myth

Question 59

All free trivia apps on iOS are required to be ad‑free by Apple policy.

Accepted Answer

Myth

Answer

Fact

Question 60

Engaging in daily science trivia boosts adult cognitive flexibility comparable to a 30‑minute aerobic workout.

Accepted Answer

Myth

Answer

Fact

Question 61

Drinking coffee after 2 PM disrupts your restorative deep sleep, even if you fall asleep with ease.

Accepted Answer

Fact

Answer

Myth

Question 62

You can successfully 'catch up' on chronic weekday sleep deprivation by sleeping extra hours over the weekend.

Accepted Answer

Myth

Answer

Fact

Question 63

The brain's glymphatic waste-clearance system removes metabolic toxins twice as fast during sleep than while awake.

Accepted Answer

Fact

Answer

Myth

Question 64

Reading from an illuminated e-reader or tablet before bed delays peak melatonin release by more than 90 minutes.

Accepted Answer

Fact

Answer

Myth

Fact or Myth?

“Playing ad‑free trivia apps for 30 minutes a day raises your IQ by roughly ten points after one week.”

More in 🧠 Brain & Mind

Decompress Your Brain with 90+ Daily Science Claims