1 in 7
Globally, around one in seven adolescents aged 10 to 19 experiences a mental disorder.
WHO
Knowledge
What is it – and why does it matter?
“There is no health without mental health.”
Mental health is just as important as physical health. It shapes how we think, feel and act, how we build relationships and how we deal with challenges.
Being mentally healthy does not mean being happy or confident all the time. Doubt, stress, fear and sadness are part of life. What matters is how we deal with them and whether we can recover from them.
Adolescence
In the early years of life, body, brain, identity and relationships are all developing. At the same time, demands from school, family, friends and social media keep growing. Worries about the future and the climate, global crises and economic uncertainty can add further pressure and reinforce the feeling that one's own future is hard to plan.
Many mental illnesses begin in this phase of life – which is exactly why early prevention can achieve so much.
1 in 7
Globally, around one in seven adolescents aged 10 to 19 experiences a mental disorder.
WHO
14.5 years
The peak age of onset across all mental disorders is estimated at 14.5 years.
OECD
1 in 5
In Germany, around a fifth of children and adolescents report mental strain and reduced quality of life.
UKE / COPSY
Everyday challenges
Almost every young person meets these topics at some point:
When demands feel bigger than your own strength.
The inner voice asking: am I good enough?
An alarm system that is sometimes louder than it needs to be.
A feeling that shows something matters to us.
Feeling alone – even in the middle of others.
The feeling of always having to deliver – at school, in sport, online.
Repeated exclusion or put-downs – offline and online.
How we see our body – often compared with others.
This list is not exhaustive – mental challenges are as varied as the people who experience them.
The good news
Many young people already have good coping strategies and personal resources. These strengths can be developed further. Knowledge, health literacy, self-efficacy and a supportive environment help to recognise strain early and deal with it better.
Schools are a key place for this: they reach children and adolescents regardless of background and can convey knowledge, strengthen protective factors and enable early support.
They make mental health understandable, tangible and fit for everyday life – so young people can make better sense of challenges, apply helpful tools and go their own way mentally stronger.
Our modules are prevention, not therapy. They do not replace psychological counselling or treatment.
When it is more
When strain lasts for weeks, clearly limits everyday life – school, sleep, friendships – or can no longer be handled alone, it is time to get support.
Important: seeking support is a sign of strength.
Free and anonymous – for children & young people
If life is in immediate danger, call the European emergency number 112 or go to the nearest emergency room.
All helplines for Germany, Austria and SwitzerlandThe content and figures shown are based on the studies and expert sources listed below.
Global figures: one in seven adolescents aged 10 to 19.
International: age of onset, trends and drivers. © OECD 2026, CC BY 4.0.
Open PDF directlyGermany: mental strain, quality of life, worries about the future and resources.
School: health literacy and well-being of schoolchildren.
Austria: state of adolescent mental health.