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The Vitamin D Trials Nobody Talks About
Two of the largest supplement trials ever run found almost nothing. Then the Endocrine Society withdrew the threshold that made half the country deficient in the first place.
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Tech
Nobody Is Left-Brained. The Man Who Won the Nobel for Split...
A study of 1,011 brains looked for people whose left or right hemisphere ran stronger overall. It found lateralised functions everywhere and lateralised people nowhere.
Health
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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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.
The Vitamin D Trials Nobody Talks About
Two of the largest supplement trials ever run found almost nothing. Then the Endocrine Society withdrew the threshold that made half the country deficient in the first place.
The latte factor gets the arithmetic right and the mechanism wrong
His sum checks out to the dollar. But 85% of people are passive savers who ignore price incentives, and financial education explains 0.1% of the variance in behaviour.
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.
Sport news
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.
No health authority has ever recommended 10,000 steps
Every official physical activity guideline is written in minutes, not steps. A 1965 pedometer brand name filled the gap — and it is aimed at exactly the wrong people.
The people who found the Blue Zones are quietly walking them back
Nicoya’s advantage inverted in forty years. Okinawa fell from 4th to 26th. And the researchers conceding this are the ones who identified the zones in the first place.
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.
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.
Recipes
What ‘just go for a walk’ leaves out
The evidence on exercise and depression is weaker than the headlines and more interesting than the sceptics allow. It points at structure and supervision, not walks.
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Your Metabolism Does Not Slow Down at 30. It Holds Steady Until 63.
A study of 6,421 people across 29 countries mapped human energy expenditure from eight days old to 95. It found four life phases. None of them begins at 30.
In 1998 Millions of Americans Became Overweight Overnight. Nobody Gained Weight.
BMI was named in 1972, in a study of 7,424 men, as a tool for comparing populations. Twenty-six years later a committee moved one number and changed who counted as healthy.
Nobody Selling You a Detox Can Tell You What They Are Removing
A group of scientists rang fifteen detox companies and asked one question: which toxin does this remove? Not one could answer. The regulators have been making the same point in court for twenty years.