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These are the signs and symptoms of depression

Understand depression and learn what the early signs are, discover how these manifest in different life stages, and how to treat it.

May 1, 2026

Clinically reviewed by Caitlin Pugh, LCSW

9 min read

Clinically reviewed by Caitlin Pugh, LCSW

Everyone has bad days — days when getting out of bed feels like a chore, and the whole world feels a little blah. But that feeling eventually lifts. Whether it’s a good night’s sleep, a change of scenery, or simply time, their mood improves and life feels manageable again.

Depression is different. It’s more than just a tough day or a rough patch. It lingers, colors everything, and can make even simple tasks feel hard to tackle. It’s often not something a person can grit their teeth and push through. It’s a mental health disorder that requires professional diagnosis, treatment, and support.

This guide covers what depression actually looks like, how it typically shows up, and what treatment options are available — so you can better understand the condition and figure out your next steps.

What is depression?

Depression is a mood disorder that affects how you think, feel, and function in daily life. While it does involve feeling generally down, it goes beyond occasional sadness. People with depression often experience persistent low mood, loss of motivation, and a range of physical and emotional symptoms that can interfere with work, relationships, and everyday tasks.

Depression is fairly common, with a little more than 18% of U.S. adults reporting they currently have or are being treated for depression. And it can affect anyone, regardless of age, gender, background, or life circumstances.

Depression is not a character flaw or a sign of weakness. It has recognized biological, psychological, and social contributors — including genetics, brain chemistry, trauma, and chronic stress. Fortunately, that means it often responds to treatment.

What are the different types of depression?

Depression is a broad category, but several different types of depression fall under this umbrella. Relatedly, each symptom of depression has its own duration and severity. Here’s a look at some of the most common types of depression.

  • Major depressive disorder (MDD) is what most people picture when they think of depression. It involves persistent low mood, loss of interest in things you once enjoyed, and a range of other symptoms like changes in sleep, appetite, energy, and concentration. To be true warning signs of depression, these symptoms need to last at least two weeks and significantly disrupt daily life. Episodes can vary in length and may recur over a person's lifetime.
  • Persistent depressive disorder (dysthymia) is a longer-lasting but often less intense form of depression. Symptoms continue for two years or more, which means people with dysthymia sometimes adapt to feeling low. This makes it easy to overlook or dismiss as someone’s personality or nature.
  • Bipolar depression refers to the depressive episodes that happen as part of bipolar disorder. These episodes can look similar to MDD, but they're part of a cycle that also includes periods of elevated or manic mood. Because of this, treatment is different from what’s used for other types of depression.
  • Seasonal affective disorder (SAD) is depression that follows a seasonal pattern, most commonly showing up in fall or winter when daylight hours are shorter. Symptoms typically improve in spring. It's more than the "winter blues,” as the mood changes are significant enough to affect daily functioning.
  • Postpartum depression affects some people after giving birth. While mood swings and fatigue are common in the early postpartum period, postpartum depression involves more persistent symptoms like deep sadness, anxiety, and difficulty bonding with a newborn. It's more common than many people realize, affecting an estimated 10% of women after giving birth.

Understanding common depression symptoms in adults

Depression affects people differently, but there are common symptoms that mental health professionals look for when making a diagnosis. These symptoms can show up emotionally, cognitively, and physically, and they tend to be persistent enough to get in the way of daily life.

If you’re wondering how to know if you have depression, the most important step is talking to a healthcare provider. Only a mental health professional can diagnose depression, and many of these symptoms can overlap with other conditions. 

  • Persistent sadness or low mood: People with depression often describe a sense of heaviness or emptiness that doesn’t lift, sometimes without any obvious cause or reason.
  • Loss of interest or pleasure: One of the hallmark warning signs of depression is losing interest in things you used to enjoy, such as hobbies, socializing, or food. This can make life feel flat or pointless, even when nothing is objectively wrong.
  • Changes in appetite or weight: Depression can suppress appetite or trigger emotional eating. Significant weight changes that aren’t related to intentional dieting are worth paying attention to. 
  • Sleep disturbances: This could mean difficulty falling or staying asleep, or sleeping way more than usual and still feeling wiped out. Both ends of the spectrum are common with depression.
  • Fatigue and low energy: People with depression often describe a bone-deep tiredness that no amount of sleep seems to fix. This makes even small tasks — like replying to a text or cooking dinner — feel disproportionately draining.
  • Difficulty concentrating or making decisions: Depression can create a mental fog that makes it hard to focus, retain information, or follow through on tasks. This can affect performance at work or school in ways that feel frustrating and hard to explain.
  • Feelings of worthlessness or guilt: Depression often distorts self-perception. People might fixate on past mistakes, feel like a burden to others, or struggle with a continuous sense that they’re not good enough. 
  • Thoughts of death or suicide: In more severe cases, depression can involve thoughts of death, dying, or suicide. These thoughts should always be taken seriously. If you or someone you know is experiencing them, contact the Suicide and Crisis Lifeline by calling or texting 988.

It's also worth noting that not everyone with depression experiences all of these symptoms — and the intensity of symptoms can change over time. If you’ve experienced several of these for two weeks or more, that's a reason to reach out to a healthcare provider.

Signs of depression at different life stages

While there are common symptoms, depression doesn’t look the same in every person. Age, gender, and individual experience all shape how depression shows up, which means it can be missed or misattributed. Here’s how depression can look across different groups.

Children and younger teens

In younger children, depression often shows up as physical complaints (such as stomachaches or headaches) or as ongoing irritability rather than visible sadness. Kids might become clingy, refuse to go to school, or seem unusually anxious.

In teens, look for withdrawal from friends and activities, a drop in academic performance, increased irritability or anger, and changes in sleep or eating habits. Since moodiness is typical in adolescence, depression can be easy to overlook in this age group.

Older adults

Depression is underdiagnosed in older adults — partly because symptoms can mimic typical signs of getting older. Things like fatigue, memory problems, and loss of interest in activities can be chalked up to age rather than recognized as signs of depression.

Older adults might also be less likely to talk about emotional symptoms, making physical complaints like fatigue, chronic pain, sleep disturbances, or poor appetite the more visible factors. 

Gender differences

Research suggests that depression can present differently across genders. Women are diagnosed with depression at higher rates than men and may be more likely to experience symptoms like persistent sadness, anxiety, and feelings of guilt or worthlessness. 

Men, on the other hand, are more likely to show irritability, anger, risk-taking behavior, or increased alcohol use. These symptoms aren’t always recognized as depression, contributing to men being underdiagnosed and less likely to seek help.

How can depression be treated?

If you’re trying to figure out how to get out of depression, the most important thing to know is that it’s treatable — and, for most people, treatment makes a meaningful difference. 

There’s no single approach that works for everyone, but there are plenty of evidence-based options to explore. Many people even benefit from using a combination of the following treatments for depression:

  • Psychotherapy: Talk therapy is one of the most effective treatments for depression. Cognitive behavioral therapy (CBT) is among the most widely used approaches, helping people identify and shift thought patterns that contribute to low mood. Therapy can be used alone or alongside other treatments.
  • Medication: Antidepressants can help regulate the brain chemistry involved in depression. Several types are available, and finding the right medication and dose often takes some adjustment. Medication should always be prescribed and monitored by a licensed healthcare provider (typically a psychiatrist, psychiatric nurse practitioner, or primary care physician).
  • Lifestyle changes: Regular physical activity, consistent sleep habits, and a balanced diet won't replace clinical treatment for moderate to severe depression, but research supports their role in improving mood and overall mental health. Even small, consistent changes can help.
  • Peer support: Connecting with others who have experience with depression can reduce isolation and provide a sense of community. Support groups are available in person and online, and they’re a great resource to lean on alongside formal treatment.
  • Complementary approaches: Practices like mindfulness, meditation, and stress reduction techniques are increasingly supported by research as helpful additions to a treatment plan. They're generally not a standalone solution for clinical depression, but many people find them useful in managing their day-to-day symptoms.

Treatment works best when it's tailored to the individual. A licensed therapist or psychologist can help assess what combination of approaches makes the most sense. Headway makes it easier to find in-network providers, with verified insurance coverage and transparent pricing so you know what to expect before your first appointment.

When to consider talking to a professional

It’s not always easy to know when to seek help for depression — or whether what you’re experiencing is serious enough to warrant a conversation with a provider. Here are some signs it might be time to reach out:

  • Your low mood has lasted more than two weeks: An ongoing shift in how you feel — especially one that doesn't seem tied to a specific event or one that isn’t lessening — is worth taking seriously.
  • You're struggling to function at work, school, or home: When depression starts affecting your ability to fulfill your responsibilities, maintain your relationships, or take care of basic needs, that's a sign to get support.
  • Self-care isn't helping: If you've been trying to manage your symptoms through exercise, sleep, or other healthy habits and aren't seeing improvement, you might need professional treatment.
  • You're having thoughts of self-harm or suicide: This is always a reason to reach out, whether it’s to a healthcare provider, a trusted person in your life, or the 988 Suicide and Crisis Lifeline (call or text 988).

Talk with a licensed clinician about depression

Depression — and severe depression — is serious, but it's also one of the most treatable mental health conditions. With the right support, most people see meaningful improvement. That starts with finding a provider you trust.

If you're ready to take that step, Headway can help. Headway connects you with licensed therapists and psychiatrists who accept your insurance. You can search for providers by specialty, verify your insurance coverage upfront, and view availability before booking — so you can find the support you need, without all of the scrolling and screening.

This content is for general informational and educational purposes only and does not constitute clinical, legal, financial, or professional advice. All decisions should be made at the discretion of the individual or organization, in consultation with qualified clinical, legal, or other appropriate professionals.

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Mental health conditions