Recent research shows that brain teasers don't make you smarter and don't belong in job interviews because they don't reflect real-world problems.
- There is little research to prove that brain games improve general cognition or slow cognitive decline. Rather they simply make you better at playing that specific brain game.
- Brain teasers are a useless tool during job interviews as they can't predict how an interviewee will perform in real world tasks relevant to the job role.
- Exercise, nutrition, socialization, and meditation are probably better brain boosters.
Why brain training apps dont boost cognition<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNDc3ODU2NC9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY1ODE5MTU3NX0.WnGU3mz2yMZx1IdQKUOhmvOmry_vjuWrBD3nzy4Yy0w/img.jpg?width=1245&coordinates=0%2C0%2C0%2C0&height=700" id="0cf0e" class="rm-shortcode" data-rm-shortcode-id="f70c82d4dcfecf4a45e7e94e59436f92" data-rm-shortcode-name="rebelmouse-image" alt="brain model" data-width="1245" data-height="700" />
Brain teasers don't reflect future job performance<img type="lazy-image" data-runner-src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yNDc3ODU2Ni9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTYzNzQyODgwOH0.LcOdRnyLQz6bKyI6N5WGmodQYL2_elOY4K3EArC-s-w/img.jpg?width=1245&coordinates=0%2C405%2C0%2C405&height=700" id="e143b" class="rm-shortcode" data-rm-shortcode-id="3fada375c74e57b7a214b19a0c6a10f8" data-rm-shortcode-name="rebelmouse-image" data-width="1245" data-height="700" />Google logo
Better brain boosters<p>The science on brain training games and teasers is a mixed bag. However, if you're looking for more effective ways to boost your cognition or prevent cognitive decline, here are some that are better backed by research:</p><ul><li><strong>Run or walk.</strong> Several studies have suggested that the parts of the brain that govern thinking and memory are greater in volume in individuals who regularly exercise as opposed to those who don't. What's more, some research has found that engaging in regular exercise of moderate intensity over six months to a year is correlated with an increase in the volume of selected brain regions. Most of this research has focused on aerobic exercise.<br><br> </li><li><strong>Meditate.</strong> Multiple studies have shown that regular mindfulness meditation increases grey matter in the brain, which equates with more neuronal activity and better performance, in certain areas. Research has also found that mindfulness meditation <a href="http://jtoomim.org/brain-training/Zeidan2010_Mindfulness_Meditation.pdf" target="_blank" rel="noopener noreferrer">improves cognition</a>.<br><br> </li><li><strong>Socialize. </strong>Frequent social activity may help to <a href="https://www.health.harvard.edu/newsletter_article/the-health-benefits-of-strong-relationships" target="_blank">delay cognitive decline</a> in old age and boost current cognition. This is because social situations and the development of relationships requires our minds to engage multiple neural networks that are relevant to healthy daily function.<br><br> </li><li><strong>Prioritize nutrition.</strong> "Brain-boosting" foods like fish, dark chocolate, antioxidant-rich berries, and foods with B vitamins like eggs can help build and repair brain cells. </li></ul>
Logic puzzles can teach reasoning in a fun way that doesn't feel like work.
- Logician Raymond Smullyan devised tons of logic puzzles, but one was declared by another philosopher to be the hardest of all time.
- The problem, also known as the Three Gods Problem, is solvable, even if it doesn't seem to be.
- It depends on using complex questions to assure that any answer given is useful.
The Three Gods Problem<iframe width="730" height="430" src="https://www.youtube.com/embed/UyOGZk7WbIk" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe><p> One of the more popular wordings of the problem, which MIT logic professor George Boolos <a href="https://www.readersdigest.ca/culture/hardest-logic-puzzle-ever/" target="_blank">said</a> was the hardest ever, is:<br> <br> "Three gods A, B, and C are called, in no particular order, True, False, and Random. True always speaks truly, False always speaks falsely, but whether Random speaks truly or falsely is a completely random matter. Your task is to determine the identities of A, B, and C by asking three yes-no questions; each question must be put to exactly one god. The gods understand English, but will answer all questions in their own language, in which the words for <em>yes</em> and <em>no</em> are <em>da</em> and <em>ja</em>, in some order. You do not know which word means which."<br> <br> Boolos adds that you are allowed to ask a particular god more than one question and that Random switches between answering as if they are a truth-teller or a liar, not merely between answering "da" and "ja." <br> <br> Give yourself a minute to ponder this; we'll look at a few answers below. Ready? Okay. <strong><br> <br></strong>George Boolos' <a href="https://www.pdcnet.org/8525737F00588A37/file/31B21D0580E8B125852577CA0060ABC9/$FILE/harvardreview_1996_0006_0001_0060_0063.pdf" target="_blank" rel="noopener noreferrer">solution</a> focuses on finding either True or False through complex questions. </p><p> In logic, there is a commonly used function often written as "iff," which means "if, and only if." It would be used to say something like "The sky is blue if and only if Des Moines is in Iowa." It is a powerful tool, as it gives a true statement only when both of its components are true or both are false. If one is true and the other is false, you have a false statement. </p><p> So, if you make a statement such as "the moon is made of Gorgonzola if, and only if, Rome is in Russia," then you have made a true statement, as both parts of it are false. The statement "The moon has no air if, and only if, Rome is in Italy," is also true, as both parts of it are true. However, "The moon is made of Gorgonzola if, and only if, Albany is the capitol of New York," is false, because one of the parts of that statement is true, and the other part is not (The fact that these items don't rely on each other is immaterial for now).</p><p> In this puzzle, iff can be used here to control for the unknown value of "da" and "ja." As the answers we get can be compared with what we know they would be if the parts of our question are all true, all false, or if they differ. </p><p> Boolos would have us begin by asking god A, "Does "da" mean yes if and only if you are True if and only if B is Random?" No matter what A says, the answer you get is extremely useful. As he explains: <br> </p><p> "If A is True or False and you get the answer da, then as we have seen, B is Random, and therefore C is either True or False; but if A is True or False and you get the answer ja, then B is not Random, therefore B is either True or False… if A is Random and you get the answer da, C is not Random (neither is B, but that's irrelevant), and therefore C is either True or False; and if A is Random...and you get the answer ja, B is not random (neither is C, irrelevantly), and therefore B is either True or False."<br> <br> No matter which god A is, an answer of "da" assures that C isn't Random, and a response of "ja" means the same for B. </p><p> From here, it is a simple matter of asking whichever one you know isn't Random questions to determine if they are telling the truth, and then one on who the last god is. Boolos suggests starting with "Does da mean yes if, and only if, Rome is in Italy?" Since one part of this is accurate, we know that True will say "da," and False will say "ja," if faced with this question. </p><p> After that, you can ask the same god something like, "Does da mean yes if, and only if, A is Random?" and know exactly who is who by how they answer and the process of elimination. </p><p> If you're confused about how this works, try going over it again slowly. Remember that the essential parts are knowing what the answer will be if two positives or two negatives always come out as a positive and that two of the gods can be relied on to act consistently. </p><p> Smullyan wrote several books with other logic puzzles in them. If you liked this one and would like to learn more about the philosophical issues they investigate, or perhaps if you'd like to try a few that are a little easier to solve, you should consider reading them. A few of his puzzles can be found with explanations in this <a href="https://www.nytimes.com/interactive/2017/02/11/obituaries/smullyan-logic-puzzles.html" target="_blank" rel="noopener noreferrer">interactive</a>. </p>
Playing and being creative shouldn't stop when you grow up.
- Growing up doesn't mean your life has to be all about work.
- Studies have shown that playing and being creative has numerous health benefits for adults of all ages.
- Simple exercises like drawing, finishing a puzzle, or taking breaks outdoors can have a positive impact on your life.