Focus
Is the human attention span really 8 seconds?
No. The claim has been traced repeatedly and no original study has ever been found. Attention depends on the task, not on a fixed number.
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Speed
Does aim training improve your gaming?
It improves target acquisition specifically. Transfer to tracking, decision-making and in-game performance is much weaker than the marketing implies.
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Words
What is a good typing speed?
Around 40 wpm is average, 60-70 is comfortably fast, and above 100 is rare. Accuracy matters more than raw speed for real work.
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Focus
Do streaks actually help build habits?
Yes, as a commitment device — but they fail badly at the break, when people who miss one day often abandon the habit entirely.
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Speed
Does my monitor affect my reaction time score?
Yes — up to 16ms on a 60Hz screen before anything is drawn, plus mouse and OS delay. Touchscreens add far more.
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Memory
How do I remember a long number?
Group it into twos or threes and attach meaning to each group. That is what raises a digit span from seven to eleven.
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Memory
Why am I better at visual memory than verbal?
Different systems handle spatial patterns and verbal material. The gap is real, but it does not mean you have a "learning style".
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Speed
How much does sleep affect reaction time?
Substantially, and it shows up first as lapses — occasional very slow responses — rather than as a uniformly slower average.
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Words
How do I type faster?
Prioritise accuracy over speed, keep your eyes on the screen, and practise the specific letter pairs that stall you. Expect a few wpm a month.
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Focus
Does brain training actually work?
You reliably improve at the trained task. Transfer to unrelated abilities is weak to absent, and the FTC fined Lumosity $2m over such claims in 2016.
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Speed
What is a good reaction time?
Around 250ms is typical for an adult on a click test, and under 200ms is fast. Up to 40ms of any result is your screen and mouse.
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Focus
What is the Stroop effect?
Naming the ink colour of a word takes longer when the word names a different colour. Described by Stroop in 1935 and reproduced ever since.
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Memory
How many things can you hold in mind at once?
About four unrelated items. The famous seven comes from Miller in 1956, and people reach it by chunking digits into groups.
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