Culture Shock: What American Expats Should Expect and How to Cope
The anthropologist who coined 'culture shock' called it an occupational disease. Here's what 70 years of research says about the stages American expats face — and how to cope.
The term “culture shock” was coined with Americans in mind. Anthropologist Kalervo Oberg first described the condition in 1954, and when his lecture was published in the journal *Practical Anthropology* in 1960, his symptom list ended with a portrait any homesick American will recognize: “that terrible longing to be back home, to be able to have a good cup of coffee and a piece of apple pie, to walk into that corner drugstore, to visit one's relatives, and, in general, to talk to people who really make sense” ([Oberg, 1960](https://culturaladjustment.weebly.com/uploads/7/5/4/8/7548819/culture_shock_oberg.pdf)).
Oberg called culture shock “an occupational disease of people who have been suddenly transplanted abroad,” and he meant the medical framing literally: “Like most ailments, it has its own symptoms, cause, and cure.” Seven decades of research since have confirmed the outline of what he observed — and added numbers on when it hits, whom it hits hardest, and what actually helps. With independent estimates putting the American population overseas between 4.4 million (the Federal Voting Assistance Program's 2022 figure) and 5.5 million ([AARO, October 2024](https://aaro.org/living-abroad/how-many-americans-live-abroad)), that is a lot of people staring down the same predictable curve — most of them unprepared for it.
What Culture Shock Actually Is
Oberg's definition still holds up: culture shock is “precipitated by the anxiety that results from losing all our familiar signs and symbols of social intercourse.” He meant the thousands of unconscious cues — when to shake hands, what to say when you meet people, how to make purchases, when to take statements seriously and when not — that make daily life automatic at home. Remove them all at once, and “no matter how broad-minded or full of good will you may be, a series of props have been knocked out from under you, followed by a feeling of frustration and anxiety.”
His 1960 symptom checklist reads like field notes: excessive concern over drinking water, food, dishes, and bedding; fits of anger over delays and other minor frustrations; delay and outright refusal to learn the host country's language; excessive fear of being cheated, robbed, or injured; “the absent-minded, far-away stare”; and an escalating dependence on fellow countrymen. His diagnostic tell was blunt: “When Americans or other foreigners in a strange land get together to grouse about the host country and its people — you can be sure they are suffering from culture shock.”
Two things follow from that definition. First, culture shock is not a character flaw or proof you picked the wrong country; it is a predictable stress response to losing your operating environment. Second, because the cause is cue loss, the cure runs through re-acquiring cues — language, relationships, and routine — not through willpower.
The Four Stages — and the Real Timeline
Oberg described four stages, and his labels remain the standard vocabulary in cross-cultural research:
- **The honeymoon.** Fascination with everything new. In Oberg's account this stage “may last from a few days or weeks to six months depending on circumstances” — longest for those cushioned by hotels, relocation services, and gracious hosts.
- **The crisis.** The real conditions of life intrude: in his list, “maid trouble, school trouble, language trouble, house trouble, transportation trouble, shopping trouble” — and hosts who seem politely indifferent to all of it. This is the stage of banding together with other Americans, grousing, and hardening stereotypes. Oberg was direct about the stakes: “This second stage of culture shock is in a sense a crisis in the disease. If you overcome it, you stay; if not, you leave before you reach the stage of a nervous breakdown.”
- **The recovery.** It begins when “the visitor succeeds in getting some knowledge of the language and begins to get around by himself.” The signature symptom of recovery is humor: instead of criticizing, the expat “jokes about the people and even cracks jokes about his or her own difficulties.”
- **The adjustment.** You “accept the customs of the country as just another way of living” and function without anxiety — though, Oberg noted, still with “moments of strain.”
Sociologist Sverre Lysgaard gave those stages their famous shape. In a [1955 study](https://www.scirp.org/reference/referencespapers?referenceid=3344179) of roughly 200 Norwegian Fulbright grantees in the United States, he found that those who had been in the country 6 to 18 months reported *lower* adjustment than those who had been there either less than six months or more than eighteen — the origin of the “U-curve” of cultural adjustment. The practical implication is counterintuitive: the hardest stretch tends to arrive months after you land, right around the time people back home stop asking how the move went.
One honest caveat: the U-curve describes an average, not a law. A [1991 review by Black and Mendenhall](https://www.researchgate.net/publication/5222549_The_U-Curve_Adjustment_Hypothesis_Revisited_A_Review_and_Theoretical_Framework) examined the empirical studies behind the model and found only partial support — several studies contradicted the curve, and most lacked rigorous statistical testing. Some expats hit the wall in week three, some at month fourteen, and some experience a jagged line rather than a curve. Use the stages as vocabulary for what you are feeling, not a schedule to be graded against.
What the Numbers Show About Expat Mental Health
Nobody knows exactly how many Americans live abroad, because no U.S. agency counts them — the Census Bureau excludes private citizens overseas from the decennial count. The State Department repeated a 9 million estimate for years before [quietly stepping away from it](https://www.greenbacktaxservices.com/blog/how-many-americans-live-abroad/), citing the absence of authoritative source data; independent estimates cluster between 4.4 and 5.5 million.
The mental health data is more precise, and it is sobering. A comparative study of U.S. expatriate employees and their domestic counterparts found that half of the expats were at risk for internalizing problems such as anxiety and depression — roughly two and a half times the rate of their U.S.-based colleagues. Three times as many expats reported feeling trapped or depressed, and twice as many reported feeling anxious or nervous ([Psychology Today, February 2023](https://www.psychologytoday.com/us/blog/the-complex-diagnosis/202302/expatriate-mental-health-challenges); [Expat Health](https://expathealth.org/expats-at-greater-risk-of-mental-health-issues/)). In [Cigna's 2022 360 Global Well-Being Survey](https://www.prnewswire.com/news-releases/cigna-survey-finds-evolving-expat-landscape-that-presents-challenges-to-employers-301585537.html), roughly nine in ten expats reported being stressed and 98% reported at least one symptom of burnout.
None of this means moving abroad is bad for you — expats also report high life satisfaction in surveys like InterNations' annual Expat Insider. It means the crisis stage Oberg described in 1960 is real, measurable, and worth preparing for the way you would prepare for any other predictable health risk.
Budget Real Hours for the Language
Notice that “delay and outright refusal to learn the language of the host country” sits on Oberg's symptom list. Language avoidance is both a symptom of culture shock and an accelerant of it, since language is the fastest route back to the social cues whose loss causes the problem in the first place.
The U.S. government's own numbers are the best antidote to magical thinking here. The Foreign Service Institute, which trains American diplomats, sorts languages by the [class hours needed](https://effectivelanguagelearning.com/language-guide/language-difficulty/) to reach professional working proficiency:
- **Category I** (Spanish, French, Italian, Portuguese, Dutch, Danish, Norwegian, Swedish, Romanian): 575–600 class hours
- **Category II** (German): 750 hours
- **Category III** (Indonesian, Malaysian, Swahili): 900 hours
- **Category IV** (Russian, Polish, Greek, Thai, Vietnamese, and roughly 35 others): 1,100 hours
- **Category V** (Arabic, Mandarin, Cantonese, Japanese, Korean): 2,200 hours
Do the arithmetic: 600 hours at one focused hour per day is about 20 months, and the State Department budgets six months of *full-time* study for the easiest tier. So if you are six months into life in Lisbon and still fumbling Portuguese, you are not failing — you are on schedule. Start before you move, log hours rather than judging fluency by feel, and treat every awkward transaction as class time.
Six Coping Strategies That Hold Up
**1. Name the stage.** The value of Oberg's framework is diagnostic distance. When you catch yourself raging at the residency-permit office or grousing with other Americans, being able to say “this is the crisis stage, and it ends” converts a private failing into a known, passing condition.
**2. Keep your structure.** Sleep, exercise, and work routines are the cues you *can* carry with you. Reestablish them in week one, before motivation dips — when the environment is unfamiliar, a fixed daily skeleton does the stabilizing work that familiarity used to do.
**3. Build two circles — and watch the ratio.** Fellow Americans provide decompression and practical intelligence, but Oberg identified the failure mode 70 years ago: the expat cocoon becomes “the fountain-head of emotionally charged labels known as stereotypes,” and settling into it stalls you in stage two indefinitely. Local relationships are the actual mechanism of recovery. How hard they are to build depends partly on where you land: in the [InterNations Expat Insider 2025 survey](https://www.forbes.com/sites/laurabegleybloom/2025/09/07/the-best-places-to-live-in-the-world-rated-by-expats/) of more than 10,000 expats across 172 nationalities, Mexico ranked first for ease of settling in while Kuwait ranked last of 46 destinations. In harder places, structured venues — a class, a club, a volunteer shift, a standing pickup game — substitute for the spontaneous connection that is not coming on its own.
**4. Log language hours.** One tracked hour daily beats bursts of enthusiasm. The metric that matters is hours invested against the FSI benchmarks above, not how fluent you feel this week.
**5. Know where the clinical line is.** Culture shock is self-limiting; depression is not. Persistent low mood beyond a few weeks, panic attacks, escalating drinking, or inability to work are reasons to seek care, not to push through. Before you move, ask your current therapist whether they can continue seeing you abroad — U.S. state licensing rules often prevent it — and identify English-speaking providers in your destination; international health insurers and U.S. embassy websites both maintain provider lists.
**6. Don't make big decisions in the trough.** Oberg observed that the crisis stage is when people quit: “If you overcome it, you stay; if not, you leave.” Lysgaard's data suggests the trough can run from month 6 to month 18. Set a review date on the far side — 18 months is a defensible default — and commit to judging the move from there, not from the bottom of the curve.
The Second Shock: Coming Home
In 1963, John and Jeanne Gullahorn published [“An Extension of the U-Curve Hypothesis”](https://spssi.onlinelibrary.wiley.com/doi/abs/10.1111/j.1540-4560.1963.tb00447.x) in the *Journal of Social Issues*, documenting that sojourners run the whole cycle *again* when they return home — the U-curve becomes a W. Oberg had already spotted the setup: during the crisis stage abroad, “everything American becomes irrationally glorified. All the difficulties and problems are forgotten and only the good things back home are remembered.” Come home to the unglorified version — while you yourself have changed — and the dissonance can cut sharper than the original shock, precisely because neither you nor anyone around you expects it. Repatriation specialists consistently describe the return as the move expats prepare for least ([Expatica](https://www.expatica.com/global/moving/leaving/reverse-culture-shock-104957/)).
If and when you repatriate: budget adjustment time the way you did for the outbound move, keep the habits that tie you to your host country, and seek out other returnees — the only people who will not be baffled that coming home is hard.
Action Items
**Before you move**
- Start the language now and start logging hours against the FSI benchmarks.
- Ask your therapist, if you have one, about continuing care across borders; shortlist English-speaking providers in your destination.
- Set a review date 18 months out — in writing, with your partner or family if they are moving too.
**First 90 days**
- Rebuild sleep, exercise, and work routines in week one.
- Say yes to structured, recurring social commitments — recurring beats one-off.
- Enjoy the honeymoon without mistaking it for the whole ride.
**Months 3–18**
- Expect the dip. Re-read Oberg's symptom list and audit yourself honestly, especially the grousing and the language avoidance.
- Keep both social circles alive, and notice if the American circle has become your only one.
- Defer irreversible decisions — quitting, moving home, buying property — to the review date.
**Before you move back**
- Re-read all of the above. The curve runs twice.
The Bottom Line
Culture shock has been described, staged, and measured for more than 70 years, starting with a lecture aimed squarely at Americans abroad. It is not a verdict on your decision to leave. It is, as Oberg said, an occupational disease — with a known course and a known cure that runs through language, local relationships, structure, and time. The expats who fare best are not the ones who feel no shock; they are the ones who see the curve coming, name the stage they are in, and keep logging hours until the strange becomes just another way of living. Start with the two things you control today: block the first language hour on tomorrow's calendar, and put the 18-month review date in writing.
Sources
- [1]
- [2]
- [3]
- [4]
- [5]Association of Americans Resident Overseas (AARO), 'How Many Americans Live Abroad?'Accessed October 2024
- [6]
- [7]Psychology Today, 'Expatriate Mental Health Challenges'Accessed February 2023
- [8]Expat Health, 'Expats at greater risk of mental health issues'Accessed accessed August 2026
- [9]
- [10]Effective Language Learning, 'Foreign Service Institute Language Difficulty Ranking'Accessed accessed August 2026
- [11]Forbes, 'The Best Places To Live In The World, Rated By Expats' (InterNations Expat Insider 2025)Accessed September 7, 2025
- [12]Expatica, 'Reverse culture shock: what, when, and how to cope'Accessed accessed August 2026