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Topic: Phones and attention

Phones, attention and evolution: what the evidence says

Everything this site carries on phones and attention, gathered in one place: the book's chapters and where they say to start, every popular claim they grade, and the reference topics and terms behind them.

1 chapter of the book3 graded claims3 reference topics39 sources

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Where does the book say to start on phones and attention?

Chapter 12: Attention in the Age of the Phone

  1. Charge the phone outside the bedroom

    ProbableEvidence grade: Probable. Good observational evidence with a plausible mechanism, or small or few trials.for children and teensEmergingEvidence grade: Emerging. Early, small, animal-only, or actively contested.for adults

  2. Turn off every notification that is not a person

    EmergingEvidence grade: Emerging. Early, small, animal-only, or actively contested.

  3. Use AI like a spotter, not a stand-in, whenever you want to learn or keep a skill

    ProbableEvidence grade: Probable. Good observational evidence with a plausible mechanism, or small or few trials.

The full protocol for Chapter 12

Which popular claims about phones and attention hold up?

  • Do blue light glasses work for sleep?

    Mostly unsupported; skip the glasses unless a clinician suggests them for a specific sleep problem.

    StrongEvidence grade: Strong. Multiple randomized controlled trials, or consistent large cohort studies with a well-understood mechanism.that the evidence for the glasses is weak

  • Does a digital detox reset your brain?

    A planned break brings a small lift and can reset a habit; "resets your brain" is overstated.

    ProbableEvidence grade: Probable. Good observational evidence with a plausible mechanism, or small or few trials.

  • Is screen time destroying a generation?

    Unproven as stated, with a serious case on both sides; heavy use is a fair worry, and the causal claim is open.

    EmergingEvidence grade: Emerging. Early, small, animal-only, or actively contested.

What does the body expect, and what does it get now?

The mismatch cards of the reference topics behind these chapters, as the library states them.

  • Topic 30: The Attention Economy and the Boredom Deficit

    ProbableEvidence grade: Probable. Good observational evidence with a plausible mechanism, or small or few trials.

    The reward circuit that learns from unpredictable payouts, and the default mode network that runs during unstructured time.

    What it expects
    Rewards that are earned, spaced and occasionally absent, separated by long intervals with nothing to attend to.
    What it gets
    A pocket device engineered for time on device, paying out on a variable schedule and filling every gap in the day.
    What happens in the gap
    Checking behavior that resists extinction, and the loss of the idle minutes in which the brain's inward work has always been done.

  • Topic 34: The Children's Mismatch

    ProbableEvidence grade: Probable. Good observational evidence with a plausible mechanism, or small or few trials.

    The developing skeleton, brain and fear response during childhood's calibration windows.

    What it expects
    Most of the daylight hours in unsupervised, mixed-age, child-directed play, outdoors, with graded doses of real risk.
    What it gets
    Adult-scheduled, age-segregated, refereed activity indoors, with risk engineered out and a screen in the gaps.
    What happens in the gap
    Bone mass unbanked before the window closes, fear left uncalibrated, and an afternoon that a phone ban empties but does not refill.

  • Topic 44: The Luxury Trap Accelerates

    EmergingEvidence grade: Emerging. Early, small, animal-only, or actively contested.

    Effortful cognition: memory retrieval, navigation, reasoning and the cognitive reserve that a lifetime of such effort appears to build.

    What it expects
    Daily problems that must be solved with the equipment inside the skull, in a world where nobody else holds the answer.
    What it gets
    An external store for every fact, a route for every journey and, lately, a competent draft of almost any piece of thinking, available before the effort starts.
    What happens in the gap
    Unknown at the level of brain health, and measurable already at the level of learning: work that looks better while the person doing it learns less.

Terms

The chapters and reference topics on this page cite 39 distinct works, each listed on its own page and in the source register. Educational content, not medical advice; read the disclaimer.