Everyone feels worried, sad or cranky sometimes. That is part of being human, and the teen years bring plenty of reasons: tests, friendships, family changes, social media and big questions about the future. But for some teens, those feelings do not pass. They stick around for weeks, get stronger and start getting in the way of school, sleep and friendships. That may be anxiety or depression.
These are the two most common mental health conditions in young people, and both are very treatable.1 This page explains how to spot the signs, why they happen and what helps, for teens and for the adults who care about them.
Key points
- About 1 in 7 young people aged 10 to 19 worldwide has a mental health condition. Anxiety is the most common, followed by depression.1
- US teen mental health is improving. In 2025, 33% of high schoolers felt persistently sad or hopeless, down from 40% in 2023. Girls still report it far more often than boys.2,3
- If sadness, worry or irritability lasts most days for a few weeks and gets in the way of life, it is time to talk to someone.4,5
- Talk therapy such as cognitive behavioral therapy (CBT) works well. For some teens, medicine helps too, and the combination often works best.6,7 Strong evidence
- Feeling connected at school and having caring adults around are strongly linked to better mental health.8
What it looks like
Anxiety
Anxiety is the body's alarm system. It is meant to protect you from danger. With an anxiety disorder, the alarm goes off too often or too strongly, even when there is no real threat. Signs can include:
- Worry that is hard to control, about school, health, family or the future
- Fear of being judged or embarrassed, so you avoid speaking in class, eating in front of others or going to parties
- Racing heart, tight chest, shaky hands, stomachaches or headaches, especially before school
- Trouble falling asleep because your mind will not slow down
- Avoiding places or activities, which can make fear grow over time
- Sudden waves of intense fear with strong body symptoms, called panic attacks
See social anxiety and generalized anxiety for more.
Depression
Depression is more than a bad day or a sad week. In teens it can look like:4
- Feeling sad, empty, worthless or anxious much of the time
- Being irritable or angry, which is very common in teens and is sometimes mistaken for "attitude"
- Losing interest in things you used to enjoy
- Pulling away from friends and family
- Grades dropping, or trouble focusing and remembering
- Sleeping much more or much less, eating more or less, and feeling tired all the time
- Thoughts of self-harm or suicide
Depression looks different in different people. Some teens have many signs, others only a few.4 See signs and symptoms of depression.
Check in privately. Our teen anxiety test and depression test take a few minutes. They are not a diagnosis, but a high score is a good reason to talk with a parent, counselor or doctor.
How common is it?
Around the world, about 1 in 7 people aged 10 to 19 (14.3%) has a mental health condition. Anxiety disorders affect about 5% of older teens, and depression about 3%.1
In the US, CDC's 2025 Youth Risk Behavior Survey of high school students found:2,3
| Measure | 2023 | 2025 |
|---|---|---|
| Felt sad or hopeless almost every day for 2+ weeks | 40% | 33% |
| Mental health was not good most of the time | 29% | 23% |
That is real progress. But in 2025, 43% of girls felt persistently sad or hopeless, compared with 24% of boys, and rates are still higher than in 2015.2
Why it happens
There is no single cause. Anxiety and depression usually come from a mix of things:
- Family history and biology. These conditions can run in families.
- A changing body and brain. Teens' bodies and brains are still growing, which can bring self-consciousness and fast-changing emotions.
- Stress. School pressure, family conflict, money worries, moving, loss or trauma. See our guide on school and exam stress.
- Bullying and feeling left out. See bullying and belonging.
- Sleep loss. Only about 1 in 4 US high schoolers gets 8 or more hours on school nights.3 See our guide on teen sleep.
- Heavy social media use. Teens who use social media more than 3 hours a day face about double the risk of depression and anxiety symptoms.9 See social media and screens.
- Substances. Nicotine, alcohol and cannabis can make mood and anxiety worse. See vaping, alcohol and drugs.
How it affects daily life
Untreated anxiety and depression can make it hard to go to school, keep up grades, enjoy friends or sleep well. Avoidance can shrink a teen's world over time. Depression can also bring thoughts of self-harm or suicide.4 The good news: earlier treatment is generally more effective and can prevent more serious, lasting problems.5
What helps
The badges show how strong the research is (see how we rate evidence).
Cognitive behavioral therapy (CBT)
Strong evidenceCBT teaches you to notice anxious or gloomy thoughts, test them and change habits that keep you stuck. It has some of the best evidence for teen depression.6 In a large NIMH-funded study of young people with anxiety, about 60% improved with CBT alone.7 See cognitive behavioral therapy.
Interpersonal therapy (IPT)
Strong evidenceIPT focuses on relationships and life changes, such as conflict with friends or family. It is one of the two best-studied talk therapies for teen depression.6 See interpersonal therapy.
Exposure, step by step
Strong evidenceFor anxiety, facing feared situations in small, planned steps helps the alarm settle down. It is a core part of CBT for anxiety. See exposure therapy.
Medicine
Moderate evidenceSome antidepressants are approved for teens. In trials, they improved symptoms more than a placebo, though most studies were short.6 In the NIMH anxiety study, about 81% of young people improved with CBT plus medicine, 60% with CBT alone, 55% with medicine alone and 24% with a placebo.7 Antidepressants carry an FDA boxed warning about suicidal thoughts in young people, so doctors watch closely, especially in the first weeks.6 Never start, stop or change a medicine without talking with the doctor.
Exercise, sleep and routine
Moderate evidenceBeing active, keeping a regular sleep schedule, eating well and spending time with people, even when you do not feel like it, can help you feel better.4 These work best alongside treatment when symptoms are strong. See exercise for mood.
Calming skills
PromisingSlow breathing and grounding can help in a tense moment. Try box breathing, cyclic sighing or 5-4-3-2-1 grounding. Build your own calm plan.
Steps you can take this week
- Name it. Write down what you feel, when it started and how often. Knowing "I've felt this way most days for a month" helps a doctor or counselor help you.
- Tell one person. A parent, school counselor, coach, teacher or doctor. NIMH suggests talking to a trusted adult if you have felt sad most of the time for a few weeks.4
- Move a little every day. A 10-minute walk counts.4
- Protect your sleep. Keep the same wake-up time, and charge your phone outside your bedroom.
- Do one small thing you used to enjoy, even if you do not feel like it. Mood often follows action. Our Activity Garden can help you plan.
- Face one small fear. If anxiety makes you avoid something, take one tiny step toward it, like sending one text or asking one question in class.
- Catch harsh thoughts. Try our Thought Check or Thought Detective.
For parents and friends
Parents: Irritability, withdrawal and slipping grades can be signs of depression, not just teenage mood. Contact a health professional if changes in mood or behavior last weeks or months and get in the way of home, school or friends.5 US experts recommend that all teens aged 12 to 18 be screened for depression at checkups, so ask your pediatrician about it.6
Teens who feel connected at school and whose parents usually know where they are and who they are with report much less sadness and suicide risk.8 Stay involved without hovering. Talk side by side, in the car or on a walk. Listen more than you fix. See our guide for parents.
Friends: You do not have to be a therapist. Say what you have noticed: "You seem really down lately. Want to talk?" Listen without judging. Encourage your friend to tell an adult, and offer to go with them. If your friend mentions self-harm or suicide, tell a trusted adult right away, even if they asked you to keep it secret. See helping someone with depression.
Special situations
- Girls report persistent sadness and poor mental health far more often than boys.2
- Boys may show depression as anger, risk-taking or substance use rather than sadness. See depression in men.
- LGBQ+ teens report much more persistent sadness. In CDC's 2023 survey, about 2 in 3 LGBQ+ students (66%) felt this way, compared with about 1 in 3 heterosexual students (31%).8 Accepting friends and adults make a big difference. See belonging.
- Eating problems often come with anxiety and depression. See body image and eating.
Common questions
How do I know if it is depression or just a bad week?
Will I have to take medicine?
Will my parents find out what I tell a counselor?
School counselors and doctors usually keep what you say private. The main exception is if they believe you or someone else is in danger. Ask about privacy rules at your first visit.
Can anxiety and depression happen at the same time?
Yes, they often do. The same treatments, like CBT, can help with both.
Want to learn more? Try our anxiety quiz or depression myths vs facts quiz. More teen topics are on the teens hub.
When to get help
Talk to a parent, counselor or doctor if:
- Sadness, worry, irritability or loss of interest lasts most days for a few weeks or more4
- Anxiety keeps you from going to school, seeing friends or doing things you need to do
- You have trouble sleeping, eating or focusing for weeks
- You are using alcohol, vaping or drugs to cope
Get help right away if you or a friend is thinking about self-harm or suicide. Call or text 988 any time, or chat at 988lifeline.org. It is free and confidential, and you can also contact 988 if you are worried about someone else.10 If someone is in immediate danger, call 911. See our guide on self-harm and suicide safety and the get help now page.
Sources
- World Health Organization. Mental health of adolescents (fact sheet). WHO, 2025. WHO
- Centers for Disease Control and Prevention. Youth Health in Focus: mental health and suicide risks (YRBS 2025). CDC, 2026. CDC
- Centers for Disease Control and Prevention. CDC data show encouraging progress in youth health (press release). CDC, 2026. CDC
- National Institute of Mental Health. Teen depression: more than just moodiness. NIMH. NIMH
- National Institute of Mental Health. Child and adolescent mental health. NIMH. NIMH
- U.S. Preventive Services Task Force. Depression and suicide risk in children and adolescents: screening. USPSTF, 2022. USPSTF
- National Institute of Mental Health. Study identifies three effective treatments for childhood anxiety disorders (CAMS). NIMH, 2008. NIMH
- Verlenden JV, et al. Mental health and suicide risk among high school students and protective factors — Youth Risk Behavior Survey, United States, 2023. MMWR Suppl, 2024. CDC
- U.S. Surgeon General. Social media and youth mental health: the Surgeon General's advisory. HHS, 2024. HHS
- 988 Suicide & Crisis Lifeline. 988 Lifeline. 988lifeline.org, 2026. 988 Lifeline
Education only. This page is general information written from the sources listed. It is not medical, legal or financial advice and does not replace a doctor, therapist or lawyer who knows your situation. How we write and check pages.