By Dr Ding Kwong Sen, Consultant Psychiatrist, Hospital Seri Botani
Key Takeaways
- Depression is more than temporary sadness. It can affect your emotions, thoughts, behaviour, sleep, appetite, energy and physical health.
- Depression does not always look like sadness. Irritability, emotional numbness, fatigue and loss of interest can also be signs.
- Symptoms that persist and interfere with work, relationships or daily activities should be professionally assessed.
- Depression is treatable. Depending on your symptoms and circumstances, treatment may include psychological therapy, medication, lifestyle changes or a combination.
- Suicidal thoughts, self-harm or an inability to function safely require urgent professional help.
Everyone feels sad from time to time, especially after a loss, disappointment or stressful event. Depression is different because it is more persistent and can affect many areas of life, including mood, thoughts, behaviour, relationships, sleep and physical health.
While sadness may improve as circumstances change, depression can involve ongoing sadness or emptiness, loss of interest, hopelessness, fatigue, poor concentration, changes in sleep or appetite, social withdrawal and difficulty managing daily responsibilities.
Depression symptoms typically occur most of the day, nearly every day, for at least two weeks. However, you do not need to wait two weeks to seek help if symptoms are severe or affecting your ability to function.
Depression can also affect the way you think and feel, causing self-criticism, guilt, irritability or emotional numbness. You may withdraw from others, lose motivation or stop enjoying activities you once liked. Physical changes such as tiredness, sleep problems, appetite or weight changes and unexplained discomfort can also occur.
How Do I Know If I Have Depression?
There is no single feeling or symptom that confirms depression.
Depression can feel different from person to person.
You might feel:
- Sad or empty
- Emotionally numb
- Constantly exhausted
- Unmotivated
- Irritable or angry
- Disconnected from others
- Unable to enjoy things you previously loved
- Overwhelmed by ordinary tasks
- Hopeless about the future
Some people with depression do not describe themselves as “sad” at all. They may simply feel that they have lost their energy, motivation or ability to enjoy life.
Sadness becomes more concerning when it is persistent or accompanied by other symptoms that significantly affect your life.
For example, you may normally enjoy meeting friends but begin avoiding everyone. You may usually perform well at work but suddenly struggle to concentrate. You may continue sleeping for eight hours but wake up exhausted every morning.
These changes can indicate that something more than temporary sadness may be happening.
What Are the Signs and Symptoms of Depression?
Depression can affect your emotions, body, thoughts and behaviour.
Emotional Symptoms
Emotional symptoms may include:
- Persistent sadness
- Emptiness
- Hopelessness
- Guilt
- Feelings of worthlessness
- Irritability
- Loss of pleasure
- Emotional numbness
You may also find that activities that previously made you happy no longer feel enjoyable.
Physical Symptoms
Depression can affect the body as well as the mind.
Possible physical symptoms include:
- Persistent fatigue
- Low energy
- Difficulty sleeping
- Sleeping too much
- Changes in appetite
- Unintentional weight changes
- Headaches
- Body aches
- Digestive problems
- Reduced sexual interest
These symptoms are not necessarily caused by depression. Persistent or unexplained physical symptoms should be medically assessed.
Behavioural Symptoms
You may notice changes such as:
- Withdrawing from friends and family
- Losing interest in hobbies
- Neglecting personal care
- Struggling to complete everyday tasks
- Reduced productivity
- Avoiding responsibilities
- Becoming less active
- Using alcohol or other substances to cope
Cognitive Symptoms
Depression can affect how you think.
You may experience:
- Poor concentration
- Forgetfulness
- Difficulty making decisions
- Negative thinking
- Persistent self-criticism
- Feelings of hopelessness
- Difficulty seeing solutions to problems
Depression can look different across age groups. Teenagers may show irritability, anger, withdrawal, loss of interest, poor school performance, sleep or appetite changes, difficulty concentrating, low self-esteem or risky behaviour rather than obvious sadness.
In older adults, depression may appear as fatigue, withdrawal, loss of interest, sleep or appetite changes, poor concentration, increased physical complaints or feelings of hopelessness. Since these symptoms can overlap with other health conditions, persistent changes should be assessed by a healthcare professional.
Why Does Depression Happen?
There is rarely one single cause of depression. It often develops from a combination of biological, psychological and social factors.
Understanding these possible causes can help identify risk factors and guide appropriate treatment.
1. Family History and Genetics
Depression can run in families. Having a close family member with depression may increase your risk, but genes alone do not determine whether someone will develop depression. Life experiences and other health factors also play a role.
2. Stress and Difficult Life Experiences
Long-term or severe stress can contribute to depression, especially when combined with other risk factors. Triggers may include relationship problems, financial difficulties, work stress, caregiving, major life changes, trauma or chronic illness. However, not everyone who experiences stress develops depression.
3. Medical Conditions and Biological Factors
Certain medical conditions can contribute to depressive symptoms or cause symptoms that resemble depression. These may include chronic illnesses, hormonal changes and some neurological conditions. Certain medications may also affect mood.
4. Psychological and Social Factors
Factors such as social isolation, low self-esteem, difficult life experiences and ongoing emotional distress may increase the risk of depression. Alcohol or substance use can also contribute to or worsen symptoms.
Overall, depression usually results from several factors rather than one specific cause. A proper assessment can help identify possible contributing factors and rule out underlying medical conditions.
How Can Depression Affect Your Daily Life?
Depression can affect much more than your mood.
At Work or School
You may find it harder to:
- Concentrate
- Remember information
- Make decisions
- Meet deadlines
- Stay motivated
- Attend work or school
Tasks that previously felt routine may suddenly feel overwhelming.
In Relationships,
Depression may cause you to withdraw from people you care about.
You might:
- Stop replying to messages
- Avoid social activities
- Become more irritable
- Feel disconnected from loved ones
- Have less energy for relationships
This withdrawal can sometimes create a cycle in which isolation makes depressive symptoms feel even worse.
In Daily Self-Care
Severe depression can make ordinary activities feel difficult.
You may struggle with:
- Showering
- Preparing meals
- Cleaning
- Getting out of bed
- Going to work
- Managing appointments
- Taking care of responsibilities
The impact on daily functioning is an important reason to seek professional help.
Can Depression Cause Physical Health Problems?
Yes. Depression and physical health can influence each other.
Depression may contribute to:
- Poor sleep
- Reduced physical activity
- Appetite changes
- Weight changes
- Fatigue
- Headaches
- Body aches
- Digestive symptoms
Depression can also make it harder to manage an existing medical condition because you may have less motivation to exercise, eat regularly, attend appointments or follow treatment plans.
At the same time, living with a chronic physical illness can increase the risk of depression.
This creates a cycle in which physical and mental health can affect one another.
Is It Depression, Burnout, Anxiety, Grief or Bipolar Disorder?
Several conditions can cause overlapping symptoms, but they are not the same.
| Condition | What Typically Stands Out |
| Depression | Persistent low mood or loss of interest affecting multiple areas of life |
| Burnout | Emotional and physical exhaustion associated with prolonged stress, often related to work or caregiving |
| Anxiety | Excessive worry, fear, apprehension and physical tension |
| Grief | Emotional response to significant loss, often occurring in waves |
| Bipolar disorder | Depressive episodes alongside periods of mania or hypomania |
You can also experience more than one condition at the same time.
For example, someone may have both anxiety and depression.
Why Is Bipolar Disorder Important to Consider?
Someone experiencing a depressive episode may assume they have depression when they actually have bipolar disorder.
Doctors may therefore ask whether you have ever experienced periods of:
- Unusually high energy
- Very little need for sleep
- Racing thoughts
- Rapid speech
- Unusually elevated or irritable mood
- Increased impulsivity
- Risky behaviour
This does not mean that everyone with depression has bipolar disorder. It simply helps healthcare professionals make a more accurate assessment.
When Should You See a Psychologist for Depression?
Consider speaking with a psychologist or other mental health professional if depressive symptoms are:
- Persistent
- Getting worse
- Affecting work or school
- Affecting relationships
- Affecting sleep or appetite
- Causing significant distress
- Making everyday tasks difficult
- Causing feelings of hopelessness
You do not have to wait until your symptoms become severe before asking for help.
Early assessment may help you understand what is happening and identify appropriate treatment options.
Seek urgent help if you or someone else has:
- Thoughts of suicide
- Thoughts of self-harm
- A plan or intention to die
- A recent suicide attempt
- Severe self-neglect
- An inability to care for basic needs
- Severe confusion or deterioration
- Psychotic symptoms
- An immediate risk of harming yourself or another person
When Should You Go to the Emergency Department?
Go to the Emergency Department when there is an immediate safety concern, particularly if someone has attempted suicide, has an active plan to harm themselves, cannot keep themselves safe or is experiencing severe mental deterioration.
When Should You Call Emergency Services?
If there is an immediate danger to life or safety, contact your local emergency services rather than waiting for a routine psychology appointment.
If someone tells you they are planning to hurt themselves, take it seriously. Stay with them if it is safe to do so, remove access to immediate means of harm where possible, and seek urgent professional assistance.
What Happens During a Depression Assessment?
Seeking help for depression can feel intimidating, especially if it is your first time speaking to a mental health professional. Your first appointment is usually a conversation to understand your symptoms, how long they have been present and how they affect your daily life.
You may be asked about your mood, sleep, appetite, energy levels, thoughts, relationships, work or school, medical history, medications and alcohol or substance use. Your psychologist may also ask about your safety, including thoughts of self-harm or suicide, to ensure you receive appropriate support.
Depression is diagnosed through a clinical assessment rather than a single blood test or scan. Your healthcare professional will consider your symptoms, their duration, their impact on your life and whether another medical condition could be contributing. Questionnaires and, in some cases, medical tests may also be used.
You will not be judged during the assessment. Mental health professionals are trained to discuss difficult thoughts and emotions with empathy and confidentiality.
You also do not need to know exactly what is wrong before attending your first appointment. Simply sharing the changes you have noticed in your mood, thoughts, behaviour or daily life is often the best place to start.
What Are the Most Effective Treatments for Depression?
There is no single treatment that works for everyone.
Treatment depends on factors such as:
- Severity
- Type of depression
- Duration
- Previous treatment
- Other medical conditions
- Personal preferences
- Response to treatment
Psychological Therapy
Psychological therapies can help you understand patterns of thinking and behaviour and develop healthier coping strategies.
Approaches may include:
- Cognitive behavioural therapy
- Behavioural activation
- Other evidence-based psychological therapies
Antidepressant Medication
Antidepressants may be recommended for some people, particularly when depression is moderate or severe or when clinically appropriate.
Your doctor or psychiatrist can discuss potential benefits, side effects and how long treatment may be needed.
Do not start, stop or change psychiatric medication without speaking with the prescribing professional.
Therapy and Medication Together
Some people benefit from a combination of psychological therapy and medication.
The decision depends on the individual’s symptoms, severity, history and preferences.
Lifestyle and Supportive Care
Lifestyle changes can support recovery but should not be presented as a replacement for professional treatment in severe depression.
Helpful measures may include:
- Regular physical activity
- Consistent sleep
- Balanced nutrition
- Social connection
- Stress management
- Limiting alcohol
- Avoiding harmful substance use
What Can You Do to Support Your Recovery From Depression?
Recovery is rarely about making one major change overnight.
Small, manageable steps can help.
Create a Simple Routine
Try to maintain regular times for waking, eating, sleeping and completing daily responsibilities.
Stay Physically Active
Even gentle activity such as walking can be a useful starting point when you have very little energy.
Maintain Social Connections
Try to remain connected with people you trust, even when you do not feel like socialising.
Prioritise Sleep
Aim for a consistent sleep schedule and discuss persistent insomnia or excessive sleep with your healthcare professional.
Follow Your Treatment Plan
Attend therapy appointments and take prescribed medication as directed.
If treatment is difficult to follow or causes side effects, discuss this with your healthcare professional rather than stopping it independently.
Recognise Your Warning Signs
If you have experienced depression before, learning to recognise early changes in your mood, sleep, energy and behaviour can help you seek support sooner if symptoms return.
How Long Does It Take to Recover From Depression?
Recovery from depression varies from person to person. Some people improve within weeks or months, while others need longer-term treatment and support.
Recovery depends on factors such as the severity and duration of symptoms, type of depression, other health conditions, treatment response, support system and previous episodes.
Improvement is often gradual, moving from early symptom relief to stabilisation, recovery and relapse prevention. Some people may experience another episode after recovery, but this does not mean treatment has failed. Ongoing support and recognising early warning signs can help with long-term management.
What Are the Common Myths About Depression?
| Myth | Fact |
| Depression is just sadness. | Depression can affect mood, thoughts, behaviour, sleep, appetite and physical health. |
| You need a major reason to become depressed. | Depression can develop even when there is no obvious trigger. |
| You can simply snap out of it. | Depression is a genuine health condition and may require professional treatment. |
| People with depression are always sad. | Some people mainly experience emptiness, numbness, irritability or loss of interest. |
| Depression is a sign of weakness. | Depression can affect anyone and has biological, psychological and social contributors. |
| Treatment always means medication. | Treatment may involve therapy, medication, lifestyle support or a combination, depending on the individual. |
| Therapy doesn’t work. | Evidence-based psychological therapies can be effective for depression. |
| Once you’re better, depression can never return. | Some people experience recurrent depression and may require ongoing support. |
Take the First Step Towards Better Mental Health
Depression can make even simple tasks feel difficult, but you do not have to manage it alone. Recognising persistent changes in your mood, thoughts, behaviour or physical wellbeing is an important first step.
At Hospital Seri Botani (HSB), patients can seek appropriate medical and mental health support based on their symptoms and individual needs. Our Psychologists and Counsellors can assess your symptoms, consider possible contributing factors and recommend the most appropriate next step.
For patients experiencing persistent physical symptoms alongside changes in mood, a broader medical assessment may also be appropriate.
You can also explore an HSB Health Screening Package to assess your overall health and identify health concerns that may require further evaluation.
If you are concerned about depression, you do not need to wait until your symptoms become overwhelming before seeking help.
FAQs
- Can Depression Affect Children and Teenagers?
Yes. Depression can affect children and teenagers. It may present as irritability, anger, withdrawal, changes in school performance, sleep or appetite, or loss of interest in activities.
Persistent changes in a young person’s mood or behaviour should be discussed with a Paediatrician.
- Is Depression Hereditary?
Depression can run in families, and having a close relative with depression may increase your risk. However, genetics are only one contributing factor.
- Can Depression Affect Memory?
Yes. Depression can affect concentration, attention, decision-making and memory. However, significant or worsening memory problems should be medically assessed because they can have other causes.
- Can Depression Cause Anger?
Yes. Depression can cause irritability, frustration and anger. This may be particularly noticeable in some teenagers and adults.
- Can Depression Affect Physical Health?
Yes. Depression can affect sleep, appetite, energy, physical activity and the ability to manage other medical conditions. Physical illnesses can also increase the risk of depression.
- Is Online Therapy Effective?
Online therapy can be effective for some people, depending on the type of therapy, severity of symptoms and individual circumstances.
However, people experiencing severe depression or an immediate safety concern may require urgent in-person assessment.
- Can Psychologists Prescribe Medication?
Generally, psychologists do not prescribe medication. Medication is usually prescribed by a doctor or psychiatrist, depending on the healthcare system and individual circumstances.
A psychologist and psychiatrist may work together when both psychological therapy and medication are appropriate.
- Can I Continue Working While Receiving Treatment?
Many people continue working while receiving treatment. However, this depends on the severity of your symptoms and the demands of your job.
If depression is significantly affecting your ability to function, your healthcare professional can discuss whether temporary adjustments or medical leave may be appropriate.
- How Can I Support Someone With Depression?
Listen without judgement and avoid telling them to simply “cheer up” or “think positively.”
Instead:
- Let them know you are there for them
- Encourage professional help
- Offer practical support
- Stay connected
- Take concerns about self-harm or suicide seriously
If they are at immediate risk, seek urgent professional help rather than trying to manage the situation alone.
- How Can I Feel Better When Depressed?
Small steps can help support your wellbeing, such as maintaining a routine, getting adequate sleep, staying connected with supportive people and engaging in gentle physical activity.
However, if symptoms are persistent, severe or affecting your ability to function, do not rely on self-care alone. Speak with a qualified healthcare professional.
