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The eight-glasses rule is a sentence someone deleted
The 1945 document blamed for the rule said most of your water comes from food and that thirst is an adequate guide. Both sentences were cut. Here is what the evidence actually shows.
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The Meditation Researchers Auditing Their Own Field
Fifteen leading contemplative scientists published a paper warning about the hype around their own discipline. Almost nobody reported it — including the finding that when you finally ask people properly, most report side effects.
Health
The sleep chart everyone copies has a footnote nobody reads
The age-by-age sleep chart is a compromise document, and the panels that wrote it said so. What the primary sources actually show about how much sleep you need.
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Sugar Does Not Make Children Hyperactive. The Study That Proved It Tested the Parents.
A 1995 meta-analysis of 23 controlled trials found no effect. A year earlier, a smaller study had already explained why everyone believes otherwise — by giving every child a placebo and lying to their mothers.
The eight-glasses rule is a sentence someone deleted
The 1945 document blamed for the rule said most of your water comes from food and that thirst is an adequate guide. Both sentences were cut. Here is what the evidence actually shows.
The 21-day habit rule came from a plastic surgeon’s book preface
Maxwell Maltz was describing how long patients took to get used to a new face. When researchers finally measured habit formation, the range ran from 18 days to 254.
Learning Styles: The Experiment That Would Settle It Has Almost Never Been Run
You are not a visual learner or an auditory learner. The claim has a precise testable form, a required study design, and a research literature that overwhelmingly endorses it without using that design.
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Learning Styles: The Experiment That Would Settle It Has Almost Never Been Run
You are not a visual learner or an auditory learner. The claim has a precise testable form, a required study design, and a research literature that overwhelmingly endorses it without using that design.
The Open Office Was Built on a Measurement. Then Nobody Measured It Again for...
When researchers finally put sensors on employees before and after a redesign, face-to-face interaction fell by about 70%. The study did not measure productivity — and after six decades of fit-outs, almost nothing has.
The sleep chart everyone copies has a footnote nobody reads
The age-by-age sleep chart is a compromise document, and the panels that wrote it said so. What the primary sources actually show about how much sleep you need.
Breakfast is not the most important meal of the day
The randomised trials point gently the other way. But the real story is the audit that found only 17% of citations to a key trial described its results accurately.
Where the three-to-six-month emergency fund rule actually came from
The most repeated number in personal finance was set in 1996 by polling 156 advisers. Six million households of bank data suggest a very different answer.
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Renting is not throwing money away, but the real argument is...
Housing’s celebrated 7% return is almost all rental yield. Real capital gains run about 1% a year — and the variable that decides the answer is whether you actually invest the difference.
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FICO Has a Page Called "Myth Busting." Almost Nobody Has Read It.
The company that makes the score has published, in writing, that carrying a balance does not help it. Its own survey found 67% of Americans wrong or unsure about what the score can even see.
The Meditation Researchers Auditing Their Own Field
Fifteen leading contemplative scientists published a paper warning about the hype around their own discipline. Almost nobody reported it — including the finding that when you finally ask people properly, most report side effects.
The 50% Divorce Rate Was True for About One Year. You Can Name It.
In 1981 the United States recorded 2,422,000 marriages and 1,213,000 divorces. Divide one by the other and you get 50.1%. It was also the peak year. The statistic has not been updated since.