Psychology Capsules
3 capsules

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.

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.

The Knowledge Worker's Guide to Task Switching, Focus, and Fatigue
What feels like doing three things at once is really rapid switching, and every switch taxes your focus and multiplies errors. The arguments differ on the remedy: capping how many tasks stay active, scheduling rest at transitions, or protecting long stretches of single-task depth. Pick the discipline that fits your work and stop paying the switching tax.