Esprio guides: memory, focus, logic and IQPractical, honest guides on memory, focus, mental math and what IQ tests really measure.https://esprio.app/en-usMental math tricks anyone can learn, with worked exampleshttps://esprio.app/blog/mental-math-tricks/https://esprio.app/blog/mental-math-tricks/Multiply by 11, square numbers ending in 5, add from left to right, work out percentages and use rounding: simple mental math tricks with step-by-step examples.Mon, 02 Nov 2026 00:00:00 GMTHow to improve focus and concentration: simple habits that helphttps://esprio.app/blog/improve-focus-concentration/https://esprio.app/blog/improve-focus-concentration/Single-tasking, keeping your phone out of reach, time-boxing, real breaks, sleep and exercise: practical ways to concentrate better, and what the research says.Sat, 31 Oct 2026 00:00:00 GMTOnline IQ tests: how accurate are they, and what does IQ mean?https://esprio.app/blog/online-iq-test-accuracy/https://esprio.app/blog/online-iq-test-accuracy/What an IQ score actually measures, how real tests like the WAIS are built and normed, and why a free online IQ test can only give you a rough estimate.Fri, 30 Oct 2026 00:00:00 GMTDo brain training games work? An honest look at the evidencehttps://esprio.app/blog/do-brain-training-games-work/https://esprio.app/blog/do-brain-training-games-work/Brain games make you better at brain games. What about memory, work or aging? A plain review of the research, from the ACTIVE trial to the FTC's Lumosity case.Wed, 28 Oct 2026 00:00:00 GMTHow to improve your memory: habits and techniques that workhttps://esprio.app/blog/improve-memory/https://esprio.app/blog/improve-memory/Spacing, retrieval practice, sleep, chunking and the method of loci: the memory techniques with real research behind them, and how to use them day to day.Tue, 27 Oct 2026 00:00:00 GMT