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Cause and Effect: Tracing Chains Honestly

B2 · Writing Lab · about 35 minutes

Learn→See an Example→Analyze→Practice→Write→Check→Improve→Rewrite
🎯 Objective. Write cause-effect texts that trace chains link by link, distinguish causes from correlations, and weigh which cause matters most.

1 · Learn

Cause-effect writing has two directions: forward (one cause, many effects — a stone in a pond) and backward (one effect, many causes — why did the bridge fall?). Both fail the same way: by skipping links. “Social media causes anxiety” jumps a canyon; the honest version walks the chain: notifications fragment sleep → broken sleep lowers mood regulation → lowered regulation looks, by Friday, like anxiety.

Your vocabulary does the logic: leads to / results in / triggers (forward), stems from / is driven by / can be traced to (backward), and the honesty words — contributes to, is associated with, accelerates — for when the chain is real but not total.

2 · See an Example

Why the Night Shift Eats the Brain

The night shift does not merely tire its workers; it rewires them, and the chain is depressingly legible. It begins with light. Working under bright light at 3 a.m. tells the body's clock that it is day, so melatonin — the hormone that opens sleep — is delayed. The worker comes home at dawn and sleeps against a rising sun and a waking street, collecting four or five shallow hours instead of eight deep ones.

Sleep debt is where the chain forks. In the brain, it degrades the prefrontal cortex's control over the amygdala, which is a clinical way of saying that tired people feel insults more and forgive them less. In the body, the same debt disturbs insulin, so night workers gain weight and drift toward diabetes at rates day workers do not match. Meanwhile — the quietest effect — family life runs on an opposite clock, and relationships pay what the body began.

None of these effects requires the others; each stems from the same broken clock. That is precisely why “just get more sleep” is such useless advice to a night worker: the cause is not laziness or habit. It is astronomy, ignored.

3 · Analyze the Example

Useful Vocabulary

stem from — to originate from; be caused by

Most errors stem from haste.

trigger — to cause something to start, suddenly

The announcement triggered panic buying.

degrade — to make worse in quality

Lack of sleep degrades judgment.

drift toward — to move slowly toward a state

He drifted toward diabetes.

legible — clear enough to read or understand

The pattern is legible in the data.

Useful Expressions

Common Mistakes

✗ “Video games cause violence because violent crimes rose in the same decades as game sales.”

✓ “Game sales and crime statistics rose together; but ice-cream sales also correlate with drowning. A cause needs a mechanism and a test, not a shared calendar.”

Correlation + chronology is the classic counterfeit of causation. Name the third factor or the missing mechanism.

✗ “Poverty causes crime causes prison causes poverty.” (the whole essay, in one breath)

✓ Walk the circle slowly, one link per paragraph, and say where the chain can be CUT — that is where the essay becomes useful.

A chain recited is not a chain explained. Slow down at each link and show the mechanism turning.

✗ “Social media is the cause of all modern unhappiness.”

✓ “Social media contributes to modern unhappiness through at least three traceable routes: comparison, sleep displacement, and outrage economics.”

“The cause of all” is never true and always lazy. Contributes to + named routes is both honest and stronger.

4 · Guided Practice

  1. Walk this jump into links: “Coffee causes productivity.”

    See a model answer

    Example chain: caffeine blocks adenosine (the sleepiness signal) → alertness rises for 3–4 hours → boring tasks feel cheaper to start → more tasks get finished before noon. (And the honest fork: the same mechanism borrows sleep from the night.)

  2. Choose the honest verb: “Junk food (causes / is associated with / single-handedly creates) obesity.” Defend the choice.

    See a model answer

    “Is associated with” (or “contributes to”) — obesity has genetic, economic, and medical causes; honesty about weight of evidence is what makes the claim believable.

  3. Find the third factor: “Cities with more bookshops have healthier citizens, so bookshops cause health.”

    See a model answer

    Wealth/education: rich, educated districts buy both books and healthcare, gyms, and better food. The bookshop is a symptom of the cause, not the cause.

5 · Write — Your Task

✍️ Write a cause-effect essay: pick one effect with several causes (burnout, a local river's decline, why a language dies, why a small town empties) or one cause with fanning effects (the smartphone, a drought, a new highway). Trace each link, translate your technical terms, and weigh which cause matters most.

Goal: 3–4 paragraphs · Length: 280–330 words

  • Draw the chain as boxes and arrows before writing. Every arrow is a paragraph's promise.
  • Use honesty verbs (contributes to, is associated with) where the evidence is partial.
  • End by judging the ROOT cause — that's where the fix lives.
✍️ Writing Studio0 words
Sentences: 0Tap an expression to insert it:
It begins with …… , which is a … way of saying that …Each stems from the same …That is precisely why …… pays what … began.

6 · Check — Self-Check

Work through your checklist honestly, then run the Self-Check. It counts words and sentences and spots mechanical points — it does not grade your English. You are the editor.

Read a model answer for the task

Why do small towns empty? The obituary usually blames the young — “they all leave” — as if departure were a character flaw. Trace the chain and the flaw moves. It begins with the anchor employer's closure: one factory, one hospital, one base. The first effect is not unemployment; it is the collapse of the second ring — the cafés, repair shops, and dentists who lived off the anchor's wages. Their closure removes the town's daily life, and only then do the young recalculate. A town without a future tense cannot keep its eighteen-year-olds, however loyal they are.

The departures then feed the cause: fewer families mean a smaller school, a smaller school means a thinner tax base, and services thin further. Economists call this a spiral; residents call it Tuesday. The honest conclusion is uncomfortable for everyone who blames the young: people do not leave towns. Towns, link by link, leave people — and the first link is almost always a single employer's door closing on a single morning.

7 · Improve & Rewrite

Weak version — rewrite it in your notebook first, then compare:

Stress causes illness because stressed people get sick a lot. Also, social media causes stress and phones cause stress and work causes stress. So stress is caused by many things and causes many things too.

See an improved version

Follow one strand of stress honestly and it leads somewhere useful. A deadline, first, is just information. It becomes stress when the brain's alarm — cortisol — stays switched on after the deadline passes, because the meeting moved, the inbox refilled, the standard rose. Sustained cortisol flattens sleep; flattened sleep raises next-day cortisol sensitivity. The circle, once closed, needs no new deadlines at all: it runs on its own physics. That is why telling a stressed person to “avoid stress” fails, and teaching them to switch the alarm off — through sleep, daylight, and finishing rituals — sometimes works. The cause worth treating is not the deadline. It is the alarm that forgot how to stop.

Quick Quiz

Keep going

📘 Grammar deep-dive: Conditionals 0, 1 & 2: if Sentences🌱 Vocabulary Builder: the B1 Health Lifestyle set🎓 TOEFL Writing: the exam version of this skill

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