Section 04about 7 min · no rush

Mental health & mental illness: the basics

Before any disorder can be named, three questions have to be answered: what is mental health, where is the line between normal and abnormal, and what causes the line to be crossed. This is the CTEVT curriculum's opening block (M2 · Mental Health · Tasks 1–2).

Definitions, and the normal–abnormal line

CTEVT PSC curriculum

Mental health (WHO/your class notes): a state of psychological, emotional, and social well-being in which a person realises their own potential, copes with the normal stresses of life, works productively, and contributes to their community. Mental illness: a clinically significant disturbance in cognition, emotional regulation, or behaviour that causes distress or impairment in functioning. Health is not merely the absence of illness: a person can lack a diagnosis and still be languishing.

Where is the "abnormal" line? No single test decides it. Clinicians triangulate with the 4 D's:

Deviance: far outside cultural norms
Distress: it hurts
Dysfunction: it breaks daily functioning (work, school, relationships, self-care)
Danger: risk to self or others

Culture sits inside every D: hearing a dead relative's voice during mourning is deviant in Berlin and expected in Bhaktapur. Frequency, intensity, and duration turn an experience into a symptom.

Myth	Fact
Mental health problems come from personal weakness or weak willpower	They result from interacting biological, psychological, and environmental factors
Counselling is only for "severe" or "mad" cases	Counselling helps with life transitions, stress, grief, trauma, and everyday emotional regulation
People with mental health conditions cannot work	With support, most work productively and thrive
Children do not get mental health problems	Distress can emerge at any age; early intervention improves lifelong outcomes
Mental illness is a spirit's curse or the fruit of karma	It is a health condition; respectful bridge-building with traditional explanations helps families seek care sooner

What causes mental illness: two models to memorise

CTEVT PSC curriculum

1 · The biopsychosocial model (Engel, 1977). Every case has three strands braided together:

Biological (genes, brain chemistry, physical illness, substances)
Psychological (coping style, thought patterns, self-concept, learning history)
Social (poverty, family conflict, displacement, discrimination, support networks)

The curriculum's own list (biological, psychosocial, environmental) is this model in different words.

2 · The diathesis-stress model. A disorder appears when an underlying vulnerability (diathesis: genetic loading, early adversity, temperament) meets enough stress (loss, migration, exam pressure, disaster). High vulnerability needs little stress; low vulnerability needs a lot. This is why one sibling breaks after an earthquake and another does not, and why "why now?" is one of assessment's most powerful questions.

Domain	Risk factors	Protective factors
Individual	Genetic predisposition, chronic illness, low emotional regulation	Problem-solving capacity, resilience, physical health
Social	Family conflict, domestic violence, isolation, loss	Strong social support, healthy family communication
Structural	Poverty, discrimination, displacement, no access to care	Economic stability, safe environment, social inclusion

Test yourself: three questions

1) Name the 4 D's and give a Nepali example of each. 2) A woman hears her late husband's voice during the 13-day mourning ritual, which D's are absent, and why does that matter? 3) Use diathesis-stress to explain why two survivors of the same landslide can have opposite outcomes.

The stress-performance curve (Yerkes-Dodson, 1908). Some arousal helps: a student with zero exam stress does not study. Mental-health work is not removing stress but keeping people near the middle, and catching them when life pins them to the right edge for months.

Keeping a mind well: one thinking skill and ten habits

CTEVT PSC curriculum

Cognitive restructuring is the skill of catching a thought, checking it, and replacing it with a fairer one. The two distortions the class notes name (two of the five listed on Approaches & forms): catastrophising ("I failed one paper, my life is finished") and black-and-white thinking ("if I am not the best I am nothing"). The check is three questions: what is the evidence, what would I tell a friend, what is the most likely outcome. It pairs with the body skills on Tools & techniques (breath, muscle relaxation, 5-4-3-2-1 grounding) and with behavioural activation on Depressive disorders.

Habit	Why it holds a mind up
Sleep on a schedule, 7 to 9 hours	Sleep is when the brain files emotion and resets stress hormones (Sleep-wake disorders)
Move every day	Walking, farm work, yoga: movement lifts mood through the body's own chemistry
A daily calming practice	Slow breathing or muscle relaxation keeps the alarm system from idling high
Keep people close	Belonging is the strongest single buffer against distress
Boundaries	Being able to say no protects time, energy and self-respect
Eat and drink regularly	Stable blood sugar and water; go easy on caffeine and alcohol
Face problems, don't dodge them	Self-compassion and problem-solving beat avoidance, which grows anxiety
Limit screens and news	Especially before bed: less overload, less rumination
Do something that matters	Hobbies, creativity, helping: purpose and a sense of mastery
Ask for help early	Distress caught early is easier to turn; that is what this course exists for

Key points

Mental health is more than the absence of illness: it is coping, working, relating and contributing.
The normal-abnormal line is drawn by distress, dysfunction, duration and danger, never by being different.
Illness comes from biology, mind and social world together (biopsychosocial), often as a vulnerability meeting stress.

Quick check

Three friendly questions to settle what you just read. This is reassurance, not a test: a wrong tap is part of learning, and you can try again.

Which is NOT one of the 4 D's?

Diathesis-stress says a disorder appears when:

Hearing a dead relative's voice during the mourning period in Nepal is:

Learn more

Pick one, not all: these are chosen to be light, not exhaustive.

Video seriesCrash Course Psychology #1–2: what psychology is and how it became a science.

PaperEngel (1977), "The need for a new medical model", Science: the original biopsychosocial paper; short and readable.

Book chapterIntroduction to Psychology: opening chapters: the course text's history and methods chapters pair with the Roots page.

Learning about the mind can stir the mind. If something here sat heavily, saying it aloud to someone you trust helps.