Mind & Well-being
Lie to Me: Who Declared Finland the World’s Happiest Country?
Finland tops the World Happiness Report, yet an experimental smile index puts it 114th out of 125. What do the rankings actually measure?
Curiosity First. Evidence Always.
The most interesting questions often hide in plain sight. We challenge familiar assumptions about health, happiness and everyday life, and investigate what the evidence actually shows.
Mind & Well-being
Can a Country Make You Happier? What Rankings Miss
Finland tops the happiness rankings. But in one 22-country study, Egypt ranked 21st on one wellbeing measure and third on another. Can rankings guide a move?
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Nutrition
The Blood Type Diet: Where Is the Evidence?
Does your blood type tell you what to eat? We examine the ABO diet, the surprising history of blood types, and what studies of personalized nutrition actually show.
Society
Can a Billionaire Start a Country With Its Own Laws?
SpaceX created a city. Próspera sells different rules. Why might a durable deal with a state be worth more than a flag?
Science
Is Air Cleaner on Higher Floors? Your Windows May Matter More
Higher floors often mean less fresh traffic pollution. But a sheltered courtyard can beat a higher road-facing window. What should you check before choosing an apartment?
Sleep & Recovery
Coffee Can Follow You Into Sleep
Coffee may affect sleep even when you feel rested. What trials reveal about dose, timing, decaf, and why the 8.8-hour rule is not a safe cutoff.
From the evidence
Key takeaways from recent research on Mike's Balance.
Mind & Well-being
The World Happiness Report ranks life evaluation, not daily joy.
Its Cantril Ladder asks people to rate their life as a whole from 0 to 10 rather than measuring daily mood, laughter or stress.
Evidence from
Can a Country Make You Happier?
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Sleep & Recovery
Caffeine can alter your sleep even when you do not notice it.
In a small experiment involving 23 healthy young men, 400 mg of caffeine 12 hours before bed reduced deep sleep by about 21 minutes, with no statistically significant change in overall self-rated sleep quality.
Evidence from
Coffee Can Follow You Into Sleep
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Supplements
For healthy adults in ordinary conditions, daily electrolyte drinks have no established advantage over adequate ordinary drinking.
They can change short-term fluid retention, but a meaningful everyday health or performance benefit has not been established.
Evidence from
Do You Need Electrolytes Every Day?
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Supplements
Do You Need Electrolytes Every Day? What the Evidence Shows for Healthy Adults
Electrolyte drinks can change short-term fluid retention. But do healthy adults benefit from drinking them every day? We followed the evidence.
Popular Articles
THE BIGGER PICTURE
Does Your Job Decide How Long You Live?
At 35, imagine two groups of 100 French men. Apply 2020–2022 death rates: 94 managers and senior professionals reach 65, but only 85 blue-collar workers do. Nine extra survivors. Is it the work itself, or the income, education and health people bring to it? The same question complicates comparisons of elite athletes across sports.
94/100Managers and senior professionals reaching age 65
85/100Blue-collar workers reaching age 65
Illustrative survival from age 35 to 65 for French men, applying 2020–2022 age-specific mortality rates. These figures do not measure the causal effect of occupation.
This Featured Article
What Actually Changes When You Move Abroad? Interactive Calculator
A country ranking compares residents; migration changes the environment around the same person. What travels with you, what changes quickly, and what only partly adapts?
THE UNEXPECTED FINDING
Spinach Has More Cadmium. Until You Count the Portion
Spinach contains 5.1 times as much cadmium as baked potato per kilogram. Yet in modelled US eating-day portions, potato contributes 2.3 times more. Same foods, opposite ranking. Only the basis of comparison changed. Neither result tells you which food is safer. Our interactive atlas lets you compare 165 foods, including cases where the evidence is too uncertain to rank them.
5.1×More cadmium in spinach per kilogram
2.3×More cadmium in potato per modelled portion
FDA food measurements combined with US reported eating-day portions: 25 g raw spinach and 285 g baked potato. This compares amounts of cadmium, not food safety.
Recent Articles
Mind & Well-being
When Cancer Enters a Teenager’s Life: Fear, Anger, Guilt and Hope
When cancer affects you or someone you love, fear, anger and guilt can feel overwhelming. Psychologist Irina Pavlova speaks to teenagers about finding support.
Nutrition
Your Apple Is Still Breathing
Long after harvest, an apple keeps consuming oxygen. So does a blueberry, at almost the same rate in the cold. Why does one last months and the other weeks?
Health & Medicine
Your First Blood Pressure Reading Isn’t a Verdict
Three blood-pressure readings, one person, two different labels. Our reanalysis of 6,100 US adults found category changes in about one in six cases. What actually changed?
Nutrition
What Time Is Breakfast, Really? Why the Clock May Be Misleading
Breakfast at 10 a.m. may be early for one person and late for another. Three different clocks tell three different stories. Which one actually matters for health?