Most people have stretches where everything feels heavier than it should. If you’re wondering whether you’re depressed, it can be hard to tell whether you’re going through a difficult few weeks or noticing signs of depression that may need treatment. That’s part of why depression so often goes unaddressed.
This page covers what depression can look like, how it differs from an ordinary low period, what to watch for in someone you care about and when to reach out.
If you or someone you know is in immediate danger, call 911 or go to the nearest emergency room. If you’re struggling or having thoughts of suicide, call or text the 988 Suicide & Crisis Lifeline at 988. The National Rehab Hotline at 866-210-1303 is for non-emergency information, support and referrals.
What Depression Is and What It Isn’t
Depression isn’t the same as sadness, and you can’t simply decide to make it stop. According to the National Institute of Mental Health, major depression involves a depressed mood or loss of interest and pleasure for most of the day, nearly every day, for at least two weeks, with symptoms that interfere with daily activities. Children and adolescents may look irritable rather than sad.
What matters is how long the symptoms last and how much they interfere with daily life. Grief after a loss can come in waves and may not affect every part of daily life in the same way. Depression tends to persist more steadily.
It’s also common. The 2024 National Survey on Drug Use and Health found that 8.2% of U.S. adults, about 21.4 million people, had a major depressive episode in the past year, with the highest rate among adults aged 18 to 25.
What the Signs of Depression Look Like
Depression can affect your mood, thoughts and body. NIMH describes symptoms in all three areas. Not everyone has the same symptoms.
In mood and thinking:
- A persistent sad, anxious or empty mood
- Hopelessness or pessimism about the future
- Irritability, frustration or restlessness
- Guilt, worthlessness or feeling helpless
- Loss of interest or pleasure in things that used to matter
- Trouble concentrating, remembering or making decisions
In the body:
- Low energy or fatigue that rest doesn’t resolve
- Sleeping much more or much less than usual or waking early
- Changes in appetite or unplanned weight change
- Aches, headaches or digestive problems without a clear physical cause
Depression can also bring thoughts of death or suicide. Unlike the other symptoms listed here, those thoughts shouldn’t be handled with a wait-and-see approach. If you’re having those thoughts or think someone close to you is, call or text 988. You don’t need to be in immediate danger to use the line.
Noticing It in Someone Else
From the outside, depression can look like something else: laziness, coldness, flakiness or a bad attitude. Instead of obvious sadness, you may notice withdrawal, such as canceled plans, unanswered messages or someone quietly stopping activities they used to enjoy.
Depression can also interfere with everyday life. NCHS Data Brief 527 found that among adolescents and adults with depression, 87.9% reported at least some difficulty with work, home or social activities because of their symptoms.
You don’t need a diagnosis to say something. You can simply mention what you’ve noticed without making assumptions and ask how they’re doing. If things feel more serious, our guide on how to help a loved one in a mental health crisis covers what to do next.
When to Reach Out
A common reason people delay reaching out is feeling that their symptoms aren’t bad enough to justify getting help, especially when someone else seems to be struggling more. But you don’t need to wait until things get worse before asking for support.
NIMH notes that although a diagnosis requires several persistent symptoms alongside low mood, people with only a few symptoms may still benefit from treatment. You don’t have to prove that your symptoms are severe enough before reaching out.
It’s worth talking to a health care provider if symptoms have lasted more than two weeks, if they’re interfering with work, school, sleep or relationships, if they came on without an obvious cause or if you’ve been managing them with alcohol or other substances. When depression and substance use overlap, dual diagnosis treatment addresses both at the same time. If you’re having thoughts of suicide, don’t wait for an appointment. Call or text 988.
What Getting Help Actually Involves
A first appointment is a conversation, not a test. There’s no blood test or scan for depression. A provider, often a primary care doctor to start, asks about your symptoms, how long they’ve been going on and how much they’re affecting your life. They may also check for physical causes that can produce similar symptoms.
From there, treatment usually means therapy, medication or both. NCHS Data Brief 528 found that 11.4% of U.S. adults took prescription medication for depression in 2023. Treatment takes time to work, and finding the right approach can take more than one attempt. Needing to adjust the approach doesn’t automatically mean treatment has failed.
Where to Start
If you’re in crisis or having thoughts of suicide, call or text the 988 Suicide & Crisis Lifeline at 988, or chat at 988lifeline.org. In a life-threatening emergency, call 911. Those services are available around the clock and are the right places to turn when the situation is urgent.
If you’re looking for a place to begin rather than a crisis line, such as finding treatment near you, asking about cost or figuring out how to approach someone you’re worried about, the National Rehab Hotline is available 24/7 at 866-210-1303. The call is free and confidential and connects you with information, guidance and referrals to local mental health resources. It’s a non-emergency line.
Depression is treatable, and reaching out for information or support can be a first step. If you’re in crisis, call or text 988. When you’re ready to explore treatment options, call the National Rehab Hotline at 866-210-1303, available 24 hours a day, 7 days a week. You don’t have to face this alone.
FAQ: Signs of Depression
- How Long Do Symptoms Have to Last to Be Depression?
For major depression, NIMH describes symptoms that occur for most of the day, nearly every day, for at least two weeks, including either low mood or loss of interest. Persistent depressive disorder involves milder symptoms that last much longer, usually at least two years.
- What’s the Difference Between Depression and Just Feeling Down?
How long the symptoms last and how much they interfere with daily life are important differences. A difficult stretch may pass without disrupting most areas of your life. Depression persists and can interfere with work, sleep, appetite and relationships. If you’re not sure what you’re experiencing, it’s worth talking to a health care provider.
- Can Depression Cause Physical Symptoms?
Yes. Fatigue, disrupted sleep, appetite changes and aches or digestive problems without a clear physical cause are all recognized symptoms. Some people notice the physical symptoms before they recognize changes in their mood.
- How Do I Bring It Up With Someone I’m Worried About?
Say what you’ve noticed rather than assuming what it means. You might mention that they seem more withdrawn or that you haven’t heard from them and ask how they’re doing. You don’t need to have the perfect words to start the conversation.
- Do I Need a Diagnosis Before I Ask for Help?
No. NIMH notes that people with only a few symptoms may still benefit from treatment, even if they don’t meet the criteria for a diagnosis. You can ask for help without first proving how serious your symptoms are.
- What Happens When I Call the National Rehab Hotline?
For a mental health crisis, call or text 988, and for immediate danger, call 911. The National Rehab Hotline is a free, confidential, non-emergency line available 24/7 at 866-210-1303. It connects you with information, guidance and referrals to resources near you.
