Quick read
Key points
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Depression in young people involves persistent low mood, loss of interest in activities, and often changes in sleep, appetite, or energy, lasting most of the day for two weeks or more. In teenagers, it can also show up as irritability, anger, or withdrawal from friends and family, rather than obvious sadness.
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Topic-specific prevention and risk reduction will be added during the article-specific evidence audit.
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Your teenager seems persistently low, withdrawn, or irritable for two weeks or more
01 · Know
What is Depression in Young People?
Depression in young people involves persistent low mood, loss of interest in activities, and often changes in sleep, appetite, or energy, lasting most of the day for two weeks or more. In teenagers, it can also show up as irritability, anger, or withdrawal from friends and family, rather than obvious sadness.
The teenage years bring significant pressures — academic, social, and related to identity — which can contribute to depression. It's a serious but very treatable condition, and early support makes a real difference.
02 · Understand
Clinical context
Irritability can mask depression in teenagers
In young people, depression sometimes presents as irritability, anger, or acting out rather than visible sadness, which can make it easy for those around them to miss or misinterpret.
03 · Act
When to Seek Help
- 1Your teenager seems persistently low, withdrawn, or irritable for two weeks or more
- 2They've lost interest in activities or friendships they used to enjoy
- 3You notice changes in their sleep, appetite, or school performance
- 4They mention feeling hopeless, or any thoughts of self-harm or suicide — seek help immediately, this is always taken seriously
04 · Prevent & manage
Practical steps
Take Any Mention of Self-Harm or Suicide Seriously
If a young person mentions thoughts of self-harm or suicide, seek help immediately — contact a GP, mental health crisis service, or in Ireland, Samaritans free on 116 123, available 24 hours a day. Taking this seriously is always the right response.
- 1Create space for open conversation.Let them know you're available to listen without judgement, at a time that feels comfortable for them.
- 2Seek professional assessment.A GP or school counsellor can be a good first point of contact for further support.
- 3Support healthy routines.Consistent sleep, activity, and reduced isolation all support better mental health.
- 4Stay involved without being overbearing.Checking in regularly, while respecting their need for some independence, helps maintain connection.
- 5Look after your own wellbeing too.Supporting a young person through depression can be demanding — seeking your own support is also important.
Evidence
References
BarnMD Health Intelligence uses authoritative and clinically relevant sources appropriate to the topic. References are shown so readers can inspect the evidence directly.
- HSE: Depression in young people ↗
Medical information notice
Health education, not individual medical advice
BarnMD Health Library provides general health education for public health literacy. Reading this article does not establish a doctor-patient relationship and this information is not a diagnosis, prescription, or personalised treatment plan. If you have symptoms or concerns about your health, seek appropriate advice from a qualified healthcare professional. If you develop emergency warning signs, seek urgent or emergency medical attention.
BarnMD Bottom Line
Depression in young people is serious but highly treatable, and early support leads to better outcomes.
Any mention of self-harm or suicide should always be taken seriously and met with immediate support.