Prevention in Psychiatry › Preventing depression and anxiety
Depression and anxiety rarely arrive with a thunderclap. They gather slowly - a stomach ache before school, a few sleepless nights, a smile that fades. That slowness is our opportunity. This is what the research says about acting before the storm breaks.
About a 14-minute read · Part of the Prevention in Psychiatry series
Kavya does not have depression or an anxiety disorder - yet. But she carries several of the strongest known risk factors: a parent with depression, mounting stress, poor sleep, and early symptoms she is hiding. Research tells us that young people like her are at substantially higher risk.1,11 It also tells us something more hopeful: with the right support, some of that risk can be lowered.5,8
Unlike psychosis, there is no single famous clinic that pioneered the prevention of depression and anxiety. Instead, the knowledge has come from schools, families, primary-care clinics and village health workers across the world. This article brings that knowledge together.
Why these disorders deserve prevention
Depression and anxiety are the most common mental disorders in the world, and many begin early. Anxiety disorders often start in childhood; depression can begin at any age, often first appearing in the teens and twenties.1,2
Sources: NCERT survey as cited in the Economic Survey 2023-24; National Mental Health Survey of India 2015-16 (NIMHANS); Solmi et al., 2022.
A blind spot in health care
The 2021 World Psychiatry blueprint on preventive psychiatry used a striking phrase for this field: indicated prevention of depression and anxiety in young people remains "a blind spot in health care".1 There is no equivalent of the high-risk psychosis clinic; no agreed criteria tell us exactly which worried teenager will develop an anxiety disorder.
That is partly because these conditions are so common, so varied and so woven into ordinary life. Normal sadness and normal worry are part of growing up - and sometimes useful. The challenge is to protect young people without turning every difficult week into a diagnosis. Prevention here, therefore, works best as a safety net with several layers, rather than a single clinic.
Safe, warm schools and homes; sleep; physical activity; mental-health literacy. Small effects, but across millions.
Children of parents with depression; new mothers; young people facing trauma or adversity.
People with mild but persistent symptoms that do not yet meet the threshold for a disorder.
Can prevention really lower risk?
For depression, the answer is a cautious yes. A meta-analysis of randomised trials found that preventive psychological programmes - mostly based on cognitive behavioural therapy - reduced the chance of developing a depressive disorder over a year by about 19%.5 Compare what happens to 100 people at increased risk.
developed depression within a year in the comparison groups of these trials.
Roughly 21 people need to take part to prevent one case - a figure comparable to many accepted preventive treatments in general medicine. Among adults who already have mild symptoms, the benefit appears larger.6
Illustration based on Cuijpers et al., Clinical Psychology Review 2021 (average control-group rate 30%, relative risk 0.81).
Programmes from around the world
Here are some of the programmes that shaped what we know - including the ones that disappointed, because they taught us as much as the successes.
A group CBT course for teenagers with mild depressive symptoms reduced later depression compared with usual care.7
A family-based programme that helps parents with depression talk to their children about the illness; it improved family understanding and children's functioning.10
A cognitive-behavioural programme reduced new episodes of depression, with benefits still visible six years later - mainly when the parent was not currently depressed.8,9
Taught optimistic thinking and problem-solving in schools; effects on depressive symptoms were real but small.12
A school programme for anxiety that showed early promise in Australia13 - but a large UK trial found that, when delivered by school staff, it did not reduce anxiety.20
Youth-friendly "one-stop" centres where young people can walk in early with any concern - a model of low-barrier early help.14
Village health workers helped depressed mothers using a simple, culturally adapted approach, halving the rate of depression.15
Watchful waiting, then guided self-help, then brief therapy for people with mild symptoms halved the onset of depression and anxiety disorders.16
Guided internet self-help reduced the onset of major depression in adults with subthreshold symptoms.17
Trained grandmothers delivered problem-solving therapy on park benches, substantially reducing symptoms of common mental disorders.27
A school programme run by lay counsellors improved school climate and reduced depressive symptoms in secondary-school students - right here in Bihar.18
CBT for insomnia in older adults roughly halved the onset of new or recurrent depression.19
A very large trial of mindfulness taught to whole classes found no benefit over normal school provision - a humbling reminder that good intentions need testing.21
What actually helps? An honest look at the evidence
The pattern across these trials is consistent: the more targeted the help, the stronger the effect. Blanket programmes for whole classes have mostly disappointed.
| Approach | What the research shows |
|---|---|
| Brief psychological help for people with mild but persistent symptoms | Strong in adults Reduces the onset of major depression.5,6,17 In young adults, studies show symptom improvement, but few have measured new cases.1,28 |
| Programmes for children of parents with depression | Moderate Reduce symptoms and the incidence of depression in offspring.8,9,11 |
| Support for mothers during and after pregnancy | Strong in South Asia Community-delivered CBT halved maternal depression in Pakistan.15 |
| Treating insomnia | Strong in older adults CBT for insomnia prevented new and recurrent depression.19 |
| Physical activity | Good Active people are less likely to develop depression24 and anxiety disorders.25 |
| Improving school climate | Promising The SEHER programme in Bihar improved wellbeing and depressive symptoms.18 |
| Classroom CBT or mindfulness for everyone | Weak Large trials and a network meta-analysis found little evidence that universal school programmes prevent depression or anxiety.20,21,22 |
| Digital psychoeducation for young people alone | Weak Not superior to no intervention for preventing depression in young people.1 |
| Mental Health First Aid training | Helpful for helpers Improves knowledge, reduces stigma and increases confidence in helping others.26 |
For anxiety, the picture is similar. Psychological and educational programmes reduce anxiety symptoms, but the evidence that they prevent anxiety disorders is still uncertain.23 What we can say with confidence is that helping someone early reduces suffering now - and that, in itself, is worth doing.
My reading of the World Psychiatry blueprint
The 2021 blueprint by Fusar-Poli, Patel, Ioannidis and colleagues is careful about common mental disorders, and I think its caution is right.1 Four of its points stand out for families and clinicians.
First, symptom relief is not the same as prevention. Many programmes make young people feel better in the short term, but very few trials have measured whether they actually prevent a disorder. We should value the relief, and stay honest about what is proven.
Second, targeting works better than blanket coverage. The clearest benefits come for young people with early symptoms or a family history - such as children of depressed parents.
Third, the body matters. Exercise may reduce new cases of anxiety, and sleep, diet and physical activity are linked to depression risk. Prevention of mental and physical illness should go together.
Fourth, the biggest lever lies outside the clinic. Poverty, violence, discrimination and insecure futures shape depression and anxiety across whole populations. The authors single out school-climate programmes - including SEHER in Bihar - as an example of what a whole-system approach can achieve.
The blueprint's limitation is the same as before: most of its evidence comes from wealthy countries. Yet some of the most convincing prevention studies - Thinking Healthy, SEHER, Friendship Bench - come from low-resource settings, and they share one feature: trusted, trained community members delivering simple, structured help.15,18,27
How a stepped prevention service works
The most successful approaches start light and step up only when needed.16
Notice
Families, teachers and doctors learn the early signs.
Watch and guide
Sleep, activity, problem-solving and self-help for mild symptoms.
Brief therapy
A few sessions of CBT or interpersonal therapy if symptoms persist.
Specialist care
Assessment and treatment if a disorder develops.
Bringing it home: a practical plan for Bihar
Bihar has one of the youngest populations in India, very few mental-health professionals, and enormous academic and economic pressure on its young people. A prevention model here must be cheap, community-based and stigma-free. This is the plan I believe we can build.
- Look after the families of our patientsEvery adult we treat for depression may have children at higher risk. A short family session - explaining the illness, protecting the children's routines, watching for early signs - is one of the best-evidenced preventive steps we have.8,10,11
- Screen mothers during pregnancy and after birthBrief questions at antenatal visits, and simple supportive care delivered by trained health workers, following the Thinking Healthy model.15
- Change the school climate, not just the syllabusSEHER showed that how safe, respected and connected students feel matters more than a one-off lecture. Our schools and coaching centres can learn from it.18
- Offer brief help to those with early symptomsStudents and adults with mild but persistent low mood or worry can benefit from a few structured sessions - before a disorder takes hold.5,6
- Treat sleep as a mental-health issuePersistent insomnia deserves proper treatment, not just sleeping tablets; CBT for insomnia can prevent depression.19
- Train trusted community helpersTeachers, ASHA workers and youth leaders can be trained to notice, listen and refer - as Mental Health First Aid and Friendship Bench show.26,27
- Measure and share what we learnRecord who comes, what we offer and how people do, so that Bihar builds its own evidence.
The words we use at home
Many young people hide their struggles because of what they expect to hear. A change of words can open the door.
Early signs worth a conversation
Everyone feels sad or worried sometimes. These changes, lasting two weeks or more, are worth discussing with a professional.
- Persistent sadness, emptiness or irritability
- Losing interest in hobbies, friends or things once enjoyed
- Worry that is hard to control, or sudden panic attacks
- Avoiding school, people or places out of fear
- Frequent headaches or stomach aches with no clear cause
- Sleeping too little or too much; constant tiredness
- Changes in appetite or weight
- Falling marks or difficulty concentrating
- Feeling worthless, guilty or a burden
- Any talk of hopelessness or not wanting to live - seek help the same day
Help you can reach right now
A last word, to families like Kavya's
When Kavya's mother came for her follow-up, I asked her how her daughter was doing. She paused, and then said quietly, "She has been carrying all of us." We arranged a family session that week. Nothing dramatic happened. Kavya was allowed to be sixteen again - to return to dance, to sleep on time, to say when she was worried. That is what prevention most often looks like: not a miracle, but a family given the knowledge and permission to protect one another.
Depression and anxiety are common, but they are not inevitable. The earlier we notice, the gentler the help can be.
Dr. Saurabh Kumar
MD (Psychiatry) AIIMS New Delhi · Associate Professor & HOD, RDJM Medical College · Ex-Assistant Professor, PMCH Patna · Consultant, Healthy Minds Clinic, Patna
Worried about someone - or yourself?
An early conversation costs little and can protect a great deal. Healthy Minds Clinic, House No. 46/B, Sahdeo Mahto Marg, near Sri Krishna Puri Park (Children's Park), Patna 800001. Open Monday, Tuesday, Wednesday, Friday and Sunday, 9 a.m. to 7 p.m. For appointments only - in an emergency, call 112.
