Depression
Everyone feels sad or low sometimes, and those feelings usually pass. Depression is different: it affects how a person feels, thinks, and handles daily life.
Dr Bhavank, in his own words
What is depression?
Depression is a common and treatable medical illness — not a personal weakness or something you can simply “snap out of.” It causes a low mood or a loss of interest in things you used to enjoy that lasts most of the day, nearly every day, for at least two weeks, and it gets in the way of your daily life.
Depression is very common. More than 1 in 5 adults will have it at some point in their lives. The good news: it can be treated, and most people get better.
What causes depression?
There is usually no single cause. Depression often happens when life stresses combine with things that make a person more vulnerable. Common contributors include: family history — depression can run in families. Stressful life events — loss of a loved one, relationship problems, money or job worries, or trauma. Difficult experiences in childhood — such as abuse or neglect. Medical conditions — like heart disease, diabetes, thyroid problems, or chronic pain. Hormonal changes — such as after childbirth or around menopause. Lifestyle factors — poor sleep, lack of exercise, and alcohol or drug use. Other mental health conditions — such as anxiety.
Depression is linked to changes in how the brain works. It is a real illness, just like high blood pressure or diabetes.
Signs and symptoms
You may have depression if, for two weeks or more, you have several of the following nearly every day: feeling sad, empty, or hopeless. Losing interest or pleasure in activities you used to enjoy. Changes in appetite or weight (eating much more or much less). Trouble sleeping, or sleeping too much. Feeling very tired or having little energy. Feeling restless, or feeling slowed down. Feeling worthless or guilty. Trouble concentrating, remembering, or making decisions. Thoughts of death or suicide.
Sometimes depression shows up mostly as physical problems — like ongoing tiredness, aches and pains, or headaches — even when you don’t feel especially sad.
Get help right away if…
If you have thoughts of harming yourself or ending your life, this is an emergency. Call or text 988 (the Suicide and Crisis Lifeline) or go to the nearest emergency room. You are not alone, and help is available.
How depression is treated
Treatment is tailored to how severe your depression is. Many people do best with a combination of approaches.
Treatments without medication. Talk therapy (counseling): proven types include cognitive behavioral therapy (CBT), behavioral activation, and interpersonal therapy. These help you change unhelpful thinking patterns, rebuild rewarding activities, and improve relationships. Talk therapy works well on its own for milder depression and works even better combined with medication for more severe depression. Exercise: regular activity — for example, 30–40 minutes, 3–4 times a week — can improve mood. Light therapy: using a bright light box can help, especially if your depression is worse in winter. Healthy habits: better sleep, a balanced diet, and cutting back on alcohol all support recovery.
Medications. Antidepressants help correct the brain chemistry involved in depression. Common first-choice options include SSRIs and SNRIs (such as sertraline, escitalopram, or venlafaxine), as well as bupropion and mirtazapine. Your clinician will help pick one based on your symptoms, other health conditions, and side effects.
Important things to know about antidepressants: they usually take 4 to 6 weeks to work fully — be patient and keep taking them as prescribed. Do not stop suddenly on your own; talk to your clinician first. Side effects are often mild and improve over time. Rarely, especially in people under 25, they can increase thoughts of suicide early in treatment — stay in close contact with your clinician when starting. If the first medication doesn’t help enough, there are many other options, including changing the dose, switching, or adding another treatment.
Living with depression
You are not to blame — depression is a medical illness. Stick with your treatment plan, even after you start feeling better. Lean on support — friends, family, or support groups can make a big difference. Keep your follow-up appointments so your care team can track your progress.
Recovery takes time, but with the right treatment most people feel significantly better. Talk to your healthcare provider about the plan that is right for you.
Draft — for Dr Bhavank’s review. The sections below are drafted from NIMH, “Depression” (rev. 2024), public domain.
What it is
Everyone feels sad or low sometimes, but these feelings usually pass. Depression (also called major depression, major depressive disorder, or clinical depression) is different. It can cause severe symptoms that affect how a person feels, thinks, and handles daily activities, such as sleeping, eating, or working.
To be diagnosed with depression, a person must have symptoms most of the day, nearly every day, for at least 2 weeks. Depression can affect anyone regardless of age, sex, race or ethnicity, income, culture, or education.
Symptoms
Common signs
Persistent sad, anxious, or “empty” mood
Feelings of hopelessness or pessimism
Feelings of irritability, frustration, or restlessness
Feelings of guilt, worthlessness, or helplessness
Loss of interest or pleasure in hobbies and activities
Fatigue, lack of energy, or feeling slowed down
Difficulty concentrating, remembering, or making decisions
Difficulty sleeping, waking too early in the morning, or oversleeping
Changes in appetite or unplanned weight changes
Physical aches or pains, headaches, cramps, or digestive problems without a clear physical cause that do not go away with treatment
Thoughts of death or suicide or suicide attempts
Changes others may notice
Increased anger or irritability
Feeling restless or on edge
Becoming withdrawn, negative, or detached
Increased use of alcohol or drugs
Isolating from family and friends
Inability to meet responsibilities or ignoring other important roles
Types
Major depression
Symptoms of depressed mood or loss of interest, most of the time for at least 2 weeks, that interfere with daily activities.
Persistent depressive disorder (dysthymia)
Less severe depression symptoms that last much longer, usually for at least 2 years.
Seasonal affective disorder
Comes and goes with the seasons, with symptoms typically starting in the late autumn and early winter and going away during the spring and summer.
Perinatal depression
Occurs during pregnancy or after childbirth.
Depression with symptoms of psychosis
A severe form of depression in which a person experiences psychosis symptoms, such as delusions or hallucinations.
Bipolar disorder
Different from depression, but involves depressive episodes as well as manic episodes with unusually elevated mood, greater irritability, or increased activity level.
Causes
Many factors together
Research suggests that genetic, biological, environmental, and psychological factors play a role in the disorder.
Other illnesses
Depression can co-occur with other mental disorders or chronic illnesses, such as diabetes, cancer, heart disease, and chronic pain. Depression can make these conditions worse and vice versa.
Medication
Sometimes, medications taken for an illness cause side effects that contribute to depression symptoms as well.
Managing it
Professional treatments
Treatment typically involves psychotherapy (in person or virtual), medication, or both. Finding the best treatment may take trial and error.
Psychotherapy (also called talk therapy or counselling) can help by teaching new ways of thinking and behaving and helping change habits that contribute to depression — for example cognitive behavioural therapy (CBT) or interpersonal therapy (IPT).
Antidepressants take time — usually 4 to 8 weeks — to work, and problems with sleep, appetite, and concentration often improve before mood lifts.
Taking care of yourself
Try to get physical activity. Just 30 minutes a day of walking can boost your mood.
Try to maintain a regular bedtime and wake-up time.
Eat regular, healthy meals.
Do what you can as you can. Decide what must get done and what can wait.
Connect with people. Talk to people you trust about how you are feeling.
Delay making important life decisions until you feel better. Discuss decisions with people who know you well.
Avoid using alcohol, nicotine, or drugs, including medications not prescribed for you.
When to seek help
If you think you may have depression, talk to a health care provider, such as a primary care doctor, psychologist, or psychiatrist.
For milder forms of depression, psychotherapy is often tried first, with medication added later if the therapy alone does not produce a good response. People with moderate or severe depression usually are prescribed medication as part of the initial treatment plan.