Depression is one of the most common mental health conditions in the United States, affecting an estimated 21 million adults in a given year, according to the National Institute of Mental Health (NIMH). It is also highly treatable. This page explains what depression is, how to recognize its symptoms, the different types, what causes it, and the treatment options available — including care at Waterside Behavioral Health in Plymouth, Massachusetts.
Reviewed by the clinical team at Waterside Behavioral Health. This article is for educational purposes and is not a substitute for a professional evaluation.
You don’t have to figure this out alone.Â
If you’ve been feeling persistently down, disconnected, or unlike yourself, speaking with a mental health professional can help you understand what’s happening and what support may be right for you.
Depression, clinically known as major depressive disorder or clinical depression, is a mood disorder that causes a persistent low mood and a loss of interest in activities. It affects how you feel, think, sleep, eat, and function day to day.
Everyday sadness is a normal response to loss, disappointment, or stress, and it usually lifts on its own within a few days. Clinical depression is different. The low mood lasts at least two weeks, shows up nearly every day, and interferes with work, relationships, or basic self-care. A person with depression often can’t simply “snap out of it,” because the condition involves changes in brain chemistry, thought patterns, and physical functioning.
Depression is a medical condition, not a personal weakness or a character flaw. And like other medical conditions, it responds to treatment.
Depression looks different from person to person. Some people feel deep sadness; others feel empty, irritable, or simply numb. The American Psychiatric Association notes that symptoms usually appear in several areas at once. Signs of depression are often grouped into four categories.
If you or someone you know is having thoughts of suicide, call or text 988 to reach the Suicide and Crisis Lifeline, available 24/7. If someone is in immediate danger, call 911.
“Depression” is an umbrella term. Several distinct conditions fall under it, and they differ in cause, duration, and pattern.
Major depressive disorder (MDD). The most familiar form. A person experiences one or more depressive episodes lasting at least two weeks, with symptoms severe enough to disrupt daily life.
Persistent depressive disorder (dysthymia). A chronic, lower-grade depression that lasts two years or more. The symptoms may feel less intense than MDD, but their length wears people down and can be just as disabling.
Seasonal affective disorder (SAD). Depression that follows a seasonal pattern, most often arriving in late fall and winter as daylight decreases. You can read more in our guide to seasonal depression.
Postpartum depression. Depression that develops during pregnancy or in the weeks and months after childbirth. It goes well beyond the short-lived “baby blues” and needs clinical attention. Our guide to postpartum depression covers the signs and treatment options.
Bipolar-related depression. People with bipolar disorder experience depressive episodes that alternate with periods of mania or hypomania. Because the treatment differs from that for MDD, an accurate diagnosis matters.
There is no single cause. Depression usually develops from a combination of factors that build on one another.
Genetics play a role — depression tends to run in families. Imbalances in brain chemicals that regulate mood, along with hormonal changes (such as those after childbirth or during thyroid problems), also contribute.
A history of trauma, chronic stress, low self-esteem, or certain thinking patterns can raise the risk. Depression also commonly occurs alongside anxiety and other conditions.
Grief, financial strain, isolation, a serious illness, or ongoing conflict at home or work can trigger an episode, especially in someone already vulnerable.
Understanding the cause is less important than recognizing the pattern. You don’t need to know why you’re depressed to benefit from treatment.
Reach out to a professional when symptoms last more than two weeks, or sooner if they interfere with your ability to work, sleep, eat, or maintain relationships. Other cues that it’s time to get help:
Thoughts of suicide are always a reason to act now. Call or text 988 for the Suicide and Crisis Lifeline, 24 hours a day. Needing help is not a sign that depression has gone “too far” — earlier support usually means a shorter, smoother recovery.
If depression is making daily life feel harder, we’re here to help.Â
Our clinicians provide compassionate assessments and can recommend the level of care that best fits your needs.
Depression is treatable, and most people improve with the right combination of care. Treatment is tailored to the type and severity of depression, and it often changes over time.
Therapy: Talk therapy is a first-line treatment. Cognitive behavioral therapy (CBT) helps people identify and reshape the negative thought patterns that feed depression. Dialectical behavior therapy (DBT) adds skills for managing intense emotions and is useful when depression comes with self-harm or emotional dysregulation.
Medication: Antidepressants can help correct the brain-chemistry changes involved in depression. They are prescribed and monitored by a physician, and they often work best alongside therapy. Medication decisions are always individual — this page does not recommend any specific drug.
Levels of care: Depression exists on a spectrum, and so does treatment. Weekly outpatient therapy works well for milder depression. When symptoms are more severe or aren’t responding, a structured program provides more support:
The right level depends on your symptoms, safety, and daily obligations — something a clinician can help you sort out in an initial assessment.
At Waterside Behavioral Health in Plymouth, MA, our clinicians treat depression with evidence-based therapy, psychiatric care, and structured programs matched to what you actually need. Whether you’re looking for weekly individual therapy or a more intensive IOP or PHP, our depression therapy program in Massachusetts is built around each person rather than a one-size-fits-all track.
We work with most major insurance plans, and our team can check your coverage before you commit to anything.
Call (774) 619-7750 to speak with our admissions team, or verify your insurance benefits online. If you’re still exploring, our other mental health conditions and our overview of anxiety, which often occurs alongside depression, are good places to start.
Waterside Behavioral Health, 4 South Russell St, Plymouth, MA 02360
Depression is highly treatable, and many people reach full remission — meaning their symptoms go away. Because depression can return, clinicians usually talk about managing it long term rather than “curing” it. With therapy, medication, and support, most people recover and stay well.
Sadness is a normal emotion tied to a specific event and it eases within days. Depression is a persistent condition that lasts at least two weeks, shows up most of the day nearly every day, and disrupts your ability to function — often without an obvious cause.
Mild depression sometimes lifts with time, rest, and support. But depression that lasts more than two weeks or interferes with daily life usually needs treatment. Waiting can make episodes longer and harder to treat, so it’s worth reaching out sooner rather than later.
The most common types are major depressive disorder (MDD), persistent depressive disorder (dysthymia), seasonal affective disorder (SAD), postpartum depression, and the depressive episodes that occur in bipolar disorder. Each has its own pattern and is treated somewhat differently.
Mild depression sometimes lifts with time, rest, and support. But depression that lasts more than two weeks or interferes with daily life usually needs treatment. Waiting can make episodes longer and harder to treat, so it’s worth reaching out sooner rather than later.
The most common types are major depressive disorder (MDD), persistent depressive disorder (dysthymia), seasonal affective disorder (SAD), postpartum depression, and the depressive episodes that occur in bipolar disorder. Each has its own pattern and is treated somewhat differently.
Whether you’ve been struggling for weeks, months, or longer, reaching out is a meaningful first step. Our team will take the time to understand your symptoms, answer your questions, and help you determine the right level of care—without pressure or obligation.
