Quiz 1 Study Sheet — Sleep, Screens & The Hook Machine

Healthy Living 9 • Outcome 1 • Quiz next class: 15 items, 25 pts, one full Morgan scenario

IF YOU CAN DO THIS PAGE COLD,
YOU WALK OUT WITH THE 5%

Part A-B Prep: Sleep MathLT-A • SHOW WORK = POINTS

Weekly debt = (9.0h target − actual) × 5 days

Morgan: (9.0 − 5.5) = 3.5 × 5 = 17.5h

Midpoint = bedtime + (total sleep ÷ 2) • Jetlag = weekend midpoint − weekday midpoint

Worked: wkday 10:30pm→6:30am = midpoint 2:30am. wkend 1:00am→10:00am = midpoint 5:30am. Shift +3.0h = 🔴 RED (green <1.0h, red >2.0h)

Reaction time after sleep loss: rested × 1.25 (+25%)

Isaiah: 0.28s × 1.25 = 0.35s — slower. Minutes→decimals: 15min = 0.25h, 45min = 0.75h. Caffeine half-life ≈ 5h (halves each ~5h; blocks adenosine — masks tiredness, no energy).

The Hook Machine (taught today)LT-C • ON THE QUIZ

1. THE PINGnotification, boredom — the bait that pulls you in

→

2. THE SWIPEthe scroll: one lazy thumb flick, zero stopping cues

→

3. THE "MAYBE"slot machine payoff: 9 boring clips, 1 gold clip — your brain gambles on the next swipe

→

4. THE LOCK-INstreaks, likes, history train tomorrow's feed so it's harder to leave

Infinite scroll = invented by Aza Raskin (2006), who later said apps sprinkle "behavioural cocaine" on your interface, and that "a thousand engineers" work to make each screen maximally addicting. The "Maybe" (variable reward) = unpredictable payoff — your brain gets hooked on guessing "maybe", not the videos themselves (same as slot machines). Attention economy = your attention is the product being sold.

All 10 Clinic CasesLT-B • NAME CASE + CONCEPT

Devon	Chronic weekday debt — the catch-up myth
Priya	Disciplined routine — the healthy baseline
Marcus	Weekend freefall — circadian misalignment
Jenna	Doomscrolling — time-in-bed ≠ time-asleep
Isaiah	Varsity athlete — HGH / recovery in deep sleep
Lily	5:45am bus — structural constraint (not a choice)
Tyrell	Energy drinks — caffeine half-life / adenosine blockade
Grace	Wired mind, clean hygiene — rumination & anxiety
Owen	All-nighter gamer — social jetlag +5.5h
Amara	Restaurant closer — non-discretionary labour

Numbers Worth KnowingLT-A/E • QUICK HITS

9.0h teen sleep target used in all our math (8–10h range)

8h 39m average teen entertainment screen time/day (Common Sense Census)

50.4% of teens report 4+ h/day of screen time (CDC)

71% of OUR Grade 9s: Period 1 brain fog (Day 1 diagnostic)

+25% reaction-time penalty after sleep loss (×1.25)

<1h / >2h midpoint shift: 🟢 stable / 🔴 social jetlag

🔒 Cover-and-self-quiz tonight (2 min):

Morgan's 5-day debt, showing the formula?
All 4 stages of the Hook Loop in order (Ping → Swipe → "Maybe" → Lock-In) — and which stage is the "slot machine"?
Which case is a structural constraint — and why isn't it "their fault"?
Midpoint shift of +3.5h — green, yellow, or red? Why?
Jenna: in bed 9h, asleep 6h — what do we call the missing 3h, and which loop stage ate it? (The "Maybe" / swipe)

📐 NS CURRICULUM • OUTCOME 1 — HEALTH BEHAVIOURS: "Learners will evaluate health behaviours that promote short-term and long-term health." Indicators on this sheet: analyse the impact of sleep on youth health and well-being (CT, PCD) • analyse the impact of technology use on health and well-being (CT, TF, PCD) • reflect on the ways personal identity shapes health-related decisions (CZ, COM, PCD).

Room 8 • Healthy Living 9 • Mr. Waugh • Healthy_Living_9_AAG (2025), Out. 1 Quiz 1: next class • 15 items • 25 pts