Skip to content
Blue Headline
Get the briefing

Search Blue Headline

Or browse a topic

HealthMindSocietyPlanetScienceTechnology

No jargon. No hype. Just the evidence.

The research that matters, explained plainly.

Every day we pick the research worth knowing about, check how strong the evidence is, and explain what it means for you.

Free, no account needed, unsubscribe anytime. We only send when it’s actually worth reading.

Naps of an Hour or More Linked to 22% Higher Death RiskHealth · SleepToday’s leadNaps of an Hour or More Linked to 22% Higher Death RiskIs napping good for you? Short naps sharpen alertness in trials, while naps of an hour or more are linked to higher health risks. Length matters most.

Latest research

See all articles →
Red Light Therapy Helped Hair Growth in Trials. Skin Claims Are ShakierHealth · Medicine & DiseaseRed Light Therapy Helped Hair Growth in Trials. Skin Claims Are ShakierMicroraptor’s Group Shares 57 Features With Birds. They Evolved SeparatelyScience · BiologyMicroraptor’s Group Shares 57 Features With Birds. They Evolved SeparatelyIs Sparkling Water Bad for Your Teeth? 100 Times Gentler Than SodaHealth · NutritionIs Sparkling Water Bad for Your Teeth? 100 Times Gentler Than SodaPoor Players Weren’t More Accurate—They Just Shot FirstMind · Psychology & BehaviourPoor Players Weren’t More Accurate—They Just Shot FirstFour Mugs of Coffee. Three Days. No Sign of Dehydration.Health · NutritionFour Mugs of Coffee. Three Days. No Sign of Dehydration.When Two Forest Foods Failed, Bear Attacks in Japan Nearly QuadrupledPlanet · NatureWhen Two Forest Foods Failed, Bear Attacks in Japan Nearly QuadrupledOne Simple Fitness Test Linked to 59% Lower Death Risk After 65Health · Ageing & LongevityOne Simple Fitness Test Linked to 59% Lower Death Risk After 65The Warm-Up That Cut Football Injuries by 39% Isn’t Just StretchingHealth · Exercise & FitnessThe Warm-Up That Cut Football Injuries by 39% Isn’t Just Stretching
Advertisement

Health & Longevity

All Health →
38 Studies Later, White Noise Still Isn’t a Sure Sleep FixHealth · Sleep38 Studies Later, White Noise Still Isn’t a Sure Sleep FixWalking After Eating Works. Walking Before Eating Doesn’t, Trials ShowHealth · Medicine & DiseaseWalking After Eating Works. Walking Before Eating Doesn’t, Trials ShowDark Chocolate’s Health Twist: Small Benefits, Heavy Metals in 28 BarsHealth · NutritionDark Chocolate’s Health Twist: Small Benefits, Heavy Metals in 28 Bars

Mind & Learning

All Mind →
More Activity, Less Dementia—Unless It’s Your JobMind · Brain ScienceMore Activity, Less Dementia—Unless It’s Your JobDoes Music Help You Study? 65 Studies Say Lose the LyricsMind · Learning & MemoryDoes Music Help You Study? 65 Studies Say Lose the LyricsWhy Are People Afraid of Clowns? 528 People Who Fear Them ExplainMind · Psychology & BehaviourWhy Are People Afraid of Clowns? 528 People Who Fear Them Explain

Relationships & Society

All Society →
Weekly Tutoring Calls Nearly Doubled the Share of Kids Doing DivisionSociety · Parenting & ChildhoodWeekly Tutoring Calls Nearly Doubled the Share of Kids Doing DivisionPregnant Women Got Free Eggs and Fish. Parts of Their Babies’ Brains Grew More.Society · Parenting & ChildhoodPregnant Women Got Free Eggs and Fish. Parts of Their Babies’ Brains Grew More.Hot Days Sent More People Looking for Payday Loans, and Fewer Got ThemSociety · Work & MoneyHot Days Sent More People Looking for Payday Loans, and Fewer Got Them

Planet & Energy

All Planet →
Hot, Hungry Seas Raised the Odds of a Disastrous Fish Catch by Up to 80%Planet · ClimateHot, Hungry Seas Raised the Odds of a Disastrous Fish Catch by Up to 80%90 Million Hospital Stays Show Wildfire Smoke Hits the Heart and Lungs HarderPlanet · Climate90 Million Hospital Stays Show Wildfire Smoke Hits the Heart and Lungs HarderThis Tiny Bee Sees Almost as Sharply as a Honeybee DronePlanet · NatureThis Tiny Bee Sees Almost as Sharply as a Honeybee Drone

Science & Discovery

All Science →
No Star Can Make This Light. A Black Hole in a Gas Cocoon CanScience · SpaceNo Star Can Make This Light. A Black Hole in a Gas Cocoon CanNASA Flew a Radiation Vest Around the Moon. It Can Cut Solar Storm Doses by Up to 60%Science · SpaceNASA Flew a Radiation Vest Around the Moon. It Can Cut Solar Storm Doses by Up to 60%Why Is Childbirth So Hard? Neanderthal Fossils Point to a New AnswerScience · History & ArchaeologyWhy Is Childbirth So Hard? Neanderthal Fossils Point to a New Answer

Technology

All Technology →
This Self-Driving Car Braked for a Car That Wasn’t There. Then It Explained WhyTechnology · AI & RoboticsThis Self-Driving Car Braked for a Car That Wasn’t There. Then It Explained Why1 in 4 Americans Have Used AI for Their Mental Health. Here’s Who and WhyTechnology · AI & Robotics1 in 4 Americans Have Used AI for Their Mental Health. Here’s Who and WhyGitHub’s Supply Chain Warning Is Really About Secret Theft, Not Just Bad PackagesTechnology · Cybersecurity & Digital IntegrityGitHub’s Supply Chain Warning Is Really About Secret Theft, Not Just Bad Packages

Explore by topic

Health & LongevitySleep, ageing, nutrition and the habits that change how long and how well we live.Mind & LearningPsychology, behaviour and learning: why we think and act the way we do.Relationships & SocietyParenting, loneliness, work and the forces that shape how we live together.Planet & EnergyClimate, energy and nature: what works, what doesn't, and what it costs.Science & DiscoveryPhysics, space, biology and history: discoveries that change how we see the world.TechnologyAI, security and the tools we use every day, judged on evidence, not hype.

How we pick and check research

1Starts with the researchEvery article is built on published research, linked so you can read it yourself.
2Says how strong it isWho was studied, how, and what the research can't tell you, in plain words.
3Adds the contextWhat earlier research found, so one result is never read on its own.
4No paid picksNo affiliate links and no sponsored studies. We cover research because it matters.

The Blue Headline briefing

The best stories. Only when they matter.

Free, no account needed, unsubscribe anytime. We only send when it’s actually worth reading.