Explore Capsules
31 capsules

Growth Mindset in Schools: Evidence, Limits, and Real-World Impact
Telling students that effort beats talent became a classroom staple, but the results are contested. These views split between evidence that mindset programs genuinely lift grades and course choices and critiques pointing to weak studies, publication bias, and thin real-world impact. You can decide how much faith to put in mindset teaching.

Baby Talk and Language Learning: Attention, Feedback, and Evidence
The exaggerated singsong adults use with infants looks silly but may be doing serious work. These approaches differ on the mechanism and the proof: how parents adjust speech to a baby's feedback, which sounds hold infant attention, and whether the research leans too hard on narrow Western samples. Comparing them shows what we truly know about talking babies into language.

Power Posing and Confidence: Evidence, Replication, and Practical Limits
Power posing became a popular claim about confidence, hormones, and behavior, but later replication efforts sharply narrowed what the evidence can support. This overview explains the original findings, the methodological disputes, and the difference between measurable effects and subjective confidence. Readers will learn where posture-based confidence techniques may be useful, where the science remains weak, and how to apply such tools without overstating their power.

Transcendental Meditation and Mindfulness: Stress, Focus, and Evidence
Transcendental Meditation and mindfulness both promise real change, but they may help different things. These claims compare where the evidence favors TM for lowering stress-related physical risk versus mindfulness for daily focus and emotional control, and where head-to-head proof runs thin. You can decide which practice fits the results you are after.

Drug Research Bias: Ghostwriting, Trial Data, and Patient Protection
The research behind your medications may carry hidden ghostwriters and massaged trial data. The views split on the remedy: exposing manipulated studies one by one, forcing legal and regulatory reform on the companies, or practicing evidence-based care that routes around the bias, especially for vulnerable patients. Decide how much to trust drug claims and how to protect yourself in the meantime.

Self-Control: Evidence, Environment, and Habit Change
The idea that self-control drains like a battery shaped years of advice, and now it is under fire. These views range from failed replications of the depletion studies and sharper testing methods to the argument that culture and environment shape self-control far more than inner grit. You can decide how to actually strengthen your own discipline.

Peter Attia's Outlive: Longevity Guidelines, Evidence, and Tradeoffs
Longevity medicine offers varied guidelines on exercise intensity, supplement timing, medical screening, and cold exposure. These guidelines differ on how to balance rigorous research with practical daily actions, when to intervene medically, and how to safely apply cold therapies. Understanding these differences helps you choose personalized strategies for healthspan and lifespan optimization.

Self-Testing and Memory: Evidence, Feedback, and Study Choices
Rereading notes feels productive, but testing yourself locks learning in far more effectively. These findings cover the memory boost from active recall and feedback, the study designs and statistics used to measure it, and debates over how widely the effect holds across learners and material. You can decide how to study for what actually sticks.

A Critical Thinker's Guide to Testing Stories and Claims
Some stories survive because they are true, and some just because they are good, and telling the difference takes more than gut feeling. These methods differ on what counts as solid ground: some weigh the reliability of sources, others lean on hard data and statistical measures, and others read physical or historical traces. You'll be able to pick the right way to test a claim before you believe it or pass it on.

The Replication Crisis: Preregistration, Statistics, Transparency, and Incentives
The replication crisis has exposed how fragile published findings can be when studies are repeated under closer scrutiny. This overview explains the roles of preregistration, statistical thresholds, trial transparency, and professional incentives in shaping research reliability. Readers will understand the main reform proposals, their tradeoffs, and why the debate over whether science can correct itself remains unresolved.

Artificial Sweeteners and Safety: Evidence, Regulation, and Risk
Artificial sweeteners are widely used in foods, drinks, and medicines, and their safety is assessed through toxicology, epidemiology, and regulatory review. This overview explains how agencies evaluate acceptable intake, why some studies raise concern, and how to distinguish credible evidence from alarm. Readers will be able to interpret sweetener safety claims with a clearer understanding of risk, uncertainty, and regulation.

A Family's Guide to Parenting Arrangements: Safety, Health, and Routines
Making a family plan means juggling safety, mental health, and daily routines all at once. These recommendations part ways on where to start: clear communication and safety protocols during parenting transitions, tackling trauma and mental health first, or using structured decision tools to settle arrangements. Seeing the differences helps you choose the path that fits your family's real situation.