Understanding the Common Symptoms of Depression

Understanding depression and its feelings

Depression is more than just a bad day or feeling sad after something difficult happens.

Clinical depression (sometimes referred to as major depressive disorder) is a mental illness that affects mood, energy, sleep, motivation, and the way you think about yourself and your life. It can interfere with daily functioning, relationships, and work.

If you’re experiencing depression, it may feel like:

• you’re moving through life with a heavy weight on your chest

• nothing feels enjoyable anymore

• everything takes more effort than it should

• you’re “doing the motions” but not really feeling present

• your brain won’t stop replaying negative thoughts

Even when things look “fine” from the outside, depression can still be present internally.

What is Major Depressive Disorder?

Major depressive disorder (also called major depression or clinical depression) is a diagnosable mood disorder that involves a cluster of depressive symptoms lasting most days for at least two weeks.

A major depressive episode often includes:

• a persistently low mood (sometimes called a depressed mood)

• losing interest in things you normally enjoy

• changes in sleep, energy, appetite, and concentration

Major depressive disorder can affect anyone. It can occur after a difficult life event, during long periods of stress, or sometimes with no obvious trigger.

And importantly: major depressive disorder is treatable. With the right support and mental health treatment, many people experience significant improvement.

Types of depressive disorder

There are several types of depressive disorder. They can share similar depression symptoms, but the pattern and intensity may vary.

Major depressive disorder

This is the most commonly discussed type, sometimes called clinical depression. It can cause significant distress and disrupt everyday life.

Persistent depressive disorder

Persistent depressive disorder involves longer-term low mood that lasts for years in some cases. Symptoms may be less severe than major depressive disorder, but the ongoing nature can still take a serious toll.

Bipolar disorder

Bipolar disorder is a mood disorder that includes periods of depression and periods of elevated mood (mania or hypomania). During depressive phases, symptoms of depression can look similar to major depression.

Seasonal affective disorder

Seasonal affective disorder (sometimes called winter depression) occurs in a seasonal pattern, often during colder months when daylight is limited.

Perinatal depression

Perinatal depression occurs during pregnancy or after childbirth. It’s more common than many people realise and deserves compassionate support.

Premenstrual dysphoric disorder (PMDD)

Premenstrual dysphoric disorder is a severe form of premenstrual syndrome that can include strong mood changes and depressive symptoms in the lead-up to menstruation.

If you’re unsure which type applies, a mental health professional can help with an accurate diagnosis and treatment plan.

Causes and risk factors of depression

Depression isn’t caused by one single thing. It is often a mix of biological, psychological, and life-related factors.

Some common risk factors and contributors include:

Family history

A family history of depression or other mental health conditions can increase the likelihood of experiencing depression.

Brain chemistry

Changes in brain chemistry may contribute to depression symptoms. This doesn’t mean you’re “broken”. It means your brain and nervous system might be under strain.

Life events and significant distress

Depression can follow trauma, grief, relationship breakdowns, burnout, or major transitions.

Low self-esteem and certain personality traits

Low self esteem, perfectionism, people-pleasing, and chronic self-criticism can be contributing factors over time.

Medical conditions

Some underlying medical conditions are linked to depression, including:

• thyroid disorders

• chronic pain

• heart disease

This is why a healthcare provider may consider physical examination, medical history, or a physical exam as part of assessment.

Key symptoms of depression

When people talk about depression symptoms, they often mean the emotional signs. These are some of the most common symptoms of depression:

1) Persistent low mood or depressed mood

This isn’t just sadness. It can feel like heaviness, emptiness, or numbness.

A low mood might show up as:

• crying more than usual

• feeling flat or disconnected

• not reacting the way you normally would

2) Loss of interest in things you normally enjoy

Many people experiencing depression notice they stop enjoying:

• hobbies

• music

• socialising

• intimacy

• exercise

• food

Even if they still do these things, it may feel like they’re going through the motions.

3) Feeling hopeless or stuck

Depression can make it feel like nothing will improve, even when part of you knows that isn’t fully true.

4) Guilt, shame, or feeling “not good enough”

This can look like:

• harsh self-judgement

• constant self-blame

• believing you’re a burden

These negative thoughts can become loud and convincing.

5) Irritability and mood changes

Not everyone with depression feels sad. Sometimes it shows up as anger, frustration, mood swings, or feeling “snappy” with people you care about.

Unexpected physical symptoms of depression

Depression isn’t just emotional. Physical symptoms are common and can be confusing, especially if you’re trying to “think your way out of it”.

6) Fatigue and low energy

A deep tiredness that doesn’t improve with rest can be one of the strongest symptoms of depression.

7) Changes in appetite and weight

Depression can lead to:

• eating much less (resulting in weight loss)

• eating more for comfort (resulting in weight gain)

8) Sleep changes

Sleep can shift in both directions:

• insomnia (trouble falling or staying asleep)

• hypersomnia (sleeping too much but still feeling exhausted)

9) Unexplained aches, pains, or physical aches

Sometimes depression shows up in the body through headaches, muscle tension, or stomach discomfort, even when tests come back “normal”.

Cognitive effects of depression

Depression can change how your brain functions day-to-day.

10) Difficulty concentrating

Difficulty concentrating is a common symptom and can make work, parenting, or study feel impossible.

11) Forgetfulness and mental fog

People often describe it as:

• “brain fog”

• “I can’t think straight”

• “I keep losing my train of thought”

12) Trouble making decisions

Small decisions can feel overwhelming, because depression drains motivation and confidence.

What are the 12 signs of depression?

Here are 12 signs and symptoms that may indicate clinical depression:

1. persistent sadness or low mood

2. feeling numb or emotionally flat

3. loss of interest in hobbies

4. fatigue and exhaustion

5. disrupted sleep

6. appetite changes

7. weight loss or weight gain

8. difficulty concentrating

9. withdrawing from others

10. increased irritability

11. feelings of guilt or low self-worth

12. suicidal thoughts or feeling like life isn’t worth it

If any of these feel familiar, you’re not alone, and support is available.

Anxiety and depression: why they often overlap

Anxiety and depression commonly occur together.

When anxiety is present alongside depressive symptoms, you might feel:

• restless but exhausted

• worried constantly

• unable to relax

• mentally stuck in fear or dread

• overwhelmed by daily life

Some people experience panic disorder symptoms or panic attacks as well.

Treating depression becomes easier when anxiety is also understood and supported as part of the full picture.

Symptoms of depression in women

Depression symptoms can look different for different people, and hormonal changes can affect mood.

Some women experience stronger symptoms during:

• pregnancy or after childbirth (perinatal depression)

• menstrual cycle changes (premenstrual dysphoric disorder)

• postpartum adjustment and sleep deprivation

• menopause transitions

Women may also carry emotional strain from caregiving, mental load, relationship stress, and high expectations, which can increase significant distress.

Depression in different age groups

Depression can happen at any age, but symptoms may show up differently depending on life stage.

Children

Children may show depression through:

• irritability

• emotional outbursts

• withdrawing from play

• changes in school engagement

Teens

Teen depression may look like:

• isolation

• anger and mood swings

• loss of motivation

• risky behaviours

Adults

Adults may experience:

• burnout symptoms

• relationship conflict

• reduced work performance

• fatigue and low mood

Older adults

Older adults can experience depression too, sometimes presenting through:

• physical symptoms

• low motivation

• withdrawal

• loss of routine

Co-occurring mental health conditions

Depression doesn’t always occur alone. Other mental health conditions can exist alongside it, including:

• anxiety disorders

• bipolar disorder

• panic disorder

• substance use challenges

This is why a full treatment plan often considers more than just one label.

Complications of untreated depression

If depression is untreated, symptoms can worsen over time and affect multiple areas of life.

Possible complications include:

• relationship breakdown

• work problems

• worsening physical symptoms

• increased isolation

• substance misuse

• suicidal thoughts

If you’re feeling in immediate danger, contact emergency support right away.

When to seek help from a mental health professional

You don’t need to be in crisis to speak with a mental health professional.

It may be time to seek treatment if:

• symptoms occur most days for more than two weeks

• your low mood is affecting work or family life

• you’re withdrawing from people you care about

• you feel emotionally unsafe or hopeless

• you’re experiencing suicidal thoughts

A mental health professional can support you through talk therapy and help you build a plan that actually feels doable.

A healthcare provider can also assess whether medical conditions may be contributing and help you access the right referrals.

Crisis support (if you need urgent help)

If you’re experiencing severe symptoms, or you’re having suicidal thoughts, please seek help immediately.

You can:

• contact a trusted person right now

• call emergency services

• reach out to a crisis line in your country

• attend your nearest hospital emergency department

You deserve support, and you don’t have to manage this alone.

Treating depression: what support can look like

Depression treated properly is not about “just thinking positive”. It’s about getting the right mix of support for your situation.

Depending on what you’re going through, treating depression may include:

Talk therapy

Talk therapy can help you:

• understand what’s happening internally

• work through patterns and triggers

• build emotional regulation and coping tools

• reduce shame and self-blame

Some therapies that may be included in mental health treatment are:

• cognitive behavioural therapy

• interpersonal therapy

Medication (for some people)

Antidepressant medication can be part of depression treatment for some people, especially when symptoms are strong or ongoing.

A healthcare provider can discuss this with you.

Lifestyle supports (without the guilt)

This isn’t about “fixing yourself”. It’s about helping your nervous system.

Helpful supports can include:

• gentle movement

• quality sleep routines

• a healthy diet

• reducing alcohol and substance use

• reconnecting with safe people

Even small shifts can lead to significant improvement over time.

How do I get myself out of depression?

First: you don’t need to do it alone.

Here are practical first steps that can help if you’re experiencing symptoms:

1. Name what’s happening
   Recognising symptoms of depression is a huge step.

2. Talk to someone safe
   A trusted friend, partner, GP, or mental health professional.

3. Reduce pressure, not just tasks
   Depression often comes with self-criticism. Less pressure can help your brain recover.

4. Do one “anchor habit” each day
   For example: shower, 5-minute walk, one meal, one small admin task.

5. Seek treatment early
   The earlier you get support, the sooner things can improve.

Supporting someone with depression

If someone you care about is experiencing depression, here’s what often helps most:

• listen without trying to “fix” it

• be consistent and patient

• offer practical support (meals, driving, check-ins)

• encourage them to speak with a mental health professional

• take suicidal thoughts seriously every time

Even one supportive person can make a difference.

Final thoughts: you’re not weak, you’re human

Depression can feel isolating, but it’s one of the most common mental disorders worldwide, and many people go through it at some point in their lives.

Recognising the symptoms of depression doesn’t mean you’re broken. It means your mind and body are asking for support.

If you’re unsure what’s going on, or you’re tired of pushing through alone, speaking with a mental health professional can be a solid first step.

You deserve support that feels safe, ethical, and genuinely helpful.