October is widely observed as Depression Awareness Month, and National Depression Screening Day falls during Mental Illness Awareness Week in the first part of the month. The timing is useful, because depression is one of the most common and most under-recognized conditions in psychiatry. The National Institute of Mental Health estimates that about 21 million U.S. adults have at least one major depressive episode in a given year, roughly 8 percent of all adults. Rates are higher in women (about 10 percent, compared with 6 percent in men) and highest in adults ages 18 to 25, at nearly 19 percent.
Those numbers describe people who meet the criteria. They don’t capture the many more who feel something is off, assume it’s stress or a personal failing, and wait months or years before asking anyone. This guide covers what depression actually looks like (including the versions people miss), what an evaluation involves, how treatment works, what to do when the first treatment doesn’t help, and how to support someone you’re worried about.
The short answer
Depression is a medical condition, not a weakness and not a mood you can think your way out of. It is diagnosed when a cluster of symptoms, usually low mood or loss of interest plus changes in sleep, energy, appetite, concentration, or self-worth, shows up most of the day, nearly every day, for at least two weeks and starts interfering with work, relationships, or daily life. It is also one of the more treatable conditions in medicine. Most people improve with the right combination of treatment, and the biggest barrier is usually the delay before anyone gets properly evaluated.
What depression is, and what it isn’t
Sadness is a normal response to loss, disappointment, or stress, and it tends to ease as circumstances change. Depression is different in duration, intensity, and reach. It colors everything, including things that used to feel good, and it doesn’t reliably lift when life improves. Grief can look similar from the outside, and the two can overlap, but grief typically comes in waves tied to the loss, while depression tends to flatten the whole day.
“Depression” is also an umbrella term. Major depressive disorder involves distinct episodes. Persistent depressive disorder is a lower-grade but long-running version, often lasting two years or more, that people sometimes dismiss as “just how I am.” Seasonal patterns, where symptoms return as the days shorten, are common this time of year. Postpartum depression follows childbirth, and depressive episodes also occur as one pole of bipolar disorder, which matters a great deal for treatment, as covered below.
Signs of depression people often miss
Many people expect depression to look like constant crying. In practice, some of the most common presentations are quieter or look like something else entirely.
Irritability and anger. Depression often shows up as a short fuse rather than sadness, particularly in men. If you or someone you live with is snapping over small things and feeling terrible afterward, depression is one of the first things worth ruling out. The relationship between mood and anger is covered in more detail in our guide to pills for anger and irritability.
Sleep changes. Waking at 3 a.m. and unable to fall back asleep is a classic pattern, as is sleeping ten hours and still feeling exhausted. Sleep problems can be a symptom of depression, a driver of it, or a separate condition, which is why persistent sleep trouble deserves its own evaluation. See our page on sleep disorders for how that distinction is made.
Trouble concentrating. Brain fog, forgetfulness, and difficulty finishing tasks are common in depression, and they overlap heavily with ADHD. Adults are sometimes treated for one when the other is the real issue, which is part of why a careful assessment matters. If you’re unsure which applies, our post on ADHD evaluation versus ADHD testing explains what a clinical evaluation covers.
Physical symptoms. Fatigue, headaches, muscle aches, stomach trouble, and appetite changes in either direction are frequent, and some people see several specialists for physical complaints before depression is considered.
Going through the motions. Some people with depression keep working, parenting, and showing up, but everything feels flat and effortful. Sometimes called high-functioning depression, it is easy to miss because nothing looks wrong from the outside. The cost shows up in how much it takes to maintain that appearance.
When it isn’t only depression
Several conditions can look like depression or travel alongside it, and getting the diagnosis right changes the treatment.
Bipolar disorder. A depressive episode in someone with bipolar disorder can be indistinguishable from major depression on the surface. The difference is the history: past periods of unusually high energy, reduced need for sleep, racing thoughts, or impulsive decisions. This matters because an antidepressant given alone can trigger mania or destabilize mood in bipolar disorder. Our overview of antidepressants for bipolar disorder explains the risks and alternatives, and our page on bipolar medication in NJ covers how treatment is approached when bipolar disorder is in the picture.
Anxiety. Depression and anxiety frequently occur together, and each can make the other harder to treat. The good news is that several medications help both, which we cover on our page about medication for anxiety and depression.
Medical causes. Thyroid problems, anemia, vitamin deficiencies, sleep apnea, chronic pain, and some medications can all produce symptoms that look like depression. A thorough evaluation considers these rather than assuming a purely psychiatric cause, and sometimes involves coordinating with your primary care provider on basic lab work.
Substance use. Alcohol in particular is a depressant, and heavy or regular use can both cause and worsen depressive symptoms. Being honest about use during an evaluation is not about judgment. It changes which treatments are likely to work.
What a depression evaluation involves
A depression evaluation is a conversation, not a quiz. It covers when symptoms started, how they’ve changed, what’s going on in your life, your sleep, appetite, energy, and concentration, any history of manic or hypomanic periods, medical conditions and current medications, family history, and substance use. It also includes direct questions about safety and suicidal thoughts. Those questions are routine, and answering them honestly helps build a plan that fits what’s actually happening.
Screening questionnaires such as the PHQ-9 are often used to measure severity and track progress over time. Free online screenings, like the one offered by Mental Health America, can be a reasonable first step, especially around National Depression Screening Day, but a screening score is not a diagnosis. It tells you whether a fuller evaluation is worth pursuing.
If you’re in New Jersey, our depression evaluation and diagnosis page describes the process in detail. For New York patients, the equivalent is our depression evaluation page for New York.
How depression is treated
Treatment usually draws on some combination of medication, psychotherapy, and lifestyle changes, and the right mix depends on severity, history, and preference. Mild depression often responds well to therapy and behavioral changes alone. Moderate to severe depression usually benefits from medication, frequently alongside therapy.
Antidepressants come in several classes. SSRIs such as sertraline, escitalopram, and fluoxetine are most often tried first because they are effective and generally well tolerated. SNRIs such as venlafaxine and duloxetine are another option, and bupropion and mirtazapine are useful alternatives, particularly when side effects like sexual dysfunction, weight gain, or sleep disruption are a concern. The best choice depends on your specific symptoms, other conditions, and prior experience with medication, not on a one-size-fits-all ranking.
Timing is where expectations most often go wrong. Antidepressants rarely work overnight. Sleep and energy sometimes improve within the first couple of weeks, but the full effect usually takes four to six weeks, and the first week or two can bring side effects such as nausea or a temporary increase in anxiety before things settle. The FDA also requires a boxed warning about increased suicidal thoughts in people under 25 during early treatment, which is one reason close follow-up in the first weeks matters. Stopping a medication abruptly because you don’t feel better yet, or because you feel better and assume you no longer need it, is a common cause of setbacks, so changes should be made with your prescriber.
Therapy, particularly cognitive behavioral therapy, has strong evidence for depression and works well alongside medication. Sleep regularity, physical activity, time outdoors, reduced alcohol, and social contact each help on their own, but they work best as support for treatment rather than a replacement for it when depression is significant. Our pages on depression treatment in NJ and depression treatment in New York explain how medication management is approached at Gimel Health.
When the first medication doesn’t work
It’s common for the first medication, or the first dose, not to be the final answer. That does not mean treatment has failed or that nothing will work. It usually means the plan needs adjusting: a different dose, a different medication, a combination, or an added treatment that boosts the response.
When depression persists after two adequate trials of antidepressants at appropriate doses and duration, it is generally described as treatment-resistant depression. At that point, options broaden to include augmentation strategies, medications from other classes, and procedures such as esketamine and transcranial magnetic stimulation (TMS), with electroconvulsive therapy reserved for severe or very resistant cases. Some of these are delivered in specialized settings rather than in an outpatient office, and part of good care is recognizing when to coordinate a referral. Our page on treatment for resistant depression walks through the options in detail.
Depression looks different depending on who has it
Men are less likely to report sadness and more likely to describe irritability, anger, risk-taking, or physical complaints, and they are less likely to seek help. Young adults carry the highest rates, and in teenagers and young adults, depression often shows up as irritability, withdrawal, and falling grades. Women are diagnosed at higher rates, and hormonal shifts play a role for some, including severe premenstrual symptoms; if your mood drops predictably in the days before your period, our guide to PMDD medication covers a related and very treatable pattern. In older adults, depression often presents as physical complaints, poor sleep, or memory problems rather than sadness, and it is frequently overlooked for that reason.
How to support someone you’re worried about
If someone close to you seems to be struggling, asking directly is almost always better than waiting. Choose a private moment, describe what you’ve noticed without diagnosing, and ask how they’re doing. Listen more than you advise. Avoid minimizing (“everyone feels this way sometimes”) and avoid ultimatums. Offer practical help, such as finding a provider, making the call together, or driving them to the first appointment, because the logistics of getting started are often what stops people.
If they mention thoughts of suicide, take it seriously, and don’t promise to keep it secret. Asking about suicide does not plant the idea. It opens the door to help. Stay with them and connect them with immediate support, as described below.
If you’re in crisis
If you or someone you know is having thoughts of suicide or is in immediate danger, call or text 988 to reach the 988 Suicide & Crisis Lifeline, available 24 hours a day, or go to the nearest emergency room. Our practice provides outpatient psychiatric care and is not equipped to manage an active emergency. Getting immediate help matters more than waiting for a scheduled appointment, and outpatient care is often an important next step once things are stabilized.
Getting started in New Jersey or New York
If depression has been affecting your sleep, work, relationships, or sense of yourself for more than a couple of weeks, that is reason enough to be evaluated. You don’t need to be certain it’s depression, and you don’t need a referral. A free 10-minute discovery call is a low-pressure way to describe what’s going on and find out whether a full evaluation makes sense.
I’m Michael Feldman, PA-C, and I provide psychiatric evaluation and medication management for depression in person at my Fort Lee, NJ office and through telehealth for patients across New Jersey and New York. You can read more about how remote care works on our telehealth NJ and telehealth NY pages. The initial evaluation is up to 50 minutes and costs $350, and follow-up visits are $300. We don’t take insurance, and a superbill is provided for out-of-network reimbursement. If cost is a question, see our fees and insurance page and our guide to what psychiatric care costs without insurance.
For general, trusted reference information on symptoms, causes, and treatment, the National Institute of Mental Health’s depression resource page is a reliable place to start.
