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Low moods usually pass, but what about when you feel sad for weeks, months or longer? Depression is a treatable health condition, so if you’re feeling this way you can get help.

Use this guide to learn about depression so you can recognise if you’re experiencing it and begin to understand what you can do about it.

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Learn about depression

In this guide we help you understand some of the causes of depression, what it can look like, what it can feel like and some of the treatments that are available to help. 

  • What is depression?

    Depression is an illness caused by changes in our brain chemistry. The World Health Organisation says that it's one of the most disabling disorders there is, and it's surprisingly common, affecting one in five women and one in ten men in their lifetime. 
    While being depressed isn't something you can just ‘snap out’ of, it can be treated. But lots of people who have depression never recognise their symptoms and so don't get the help or support they need.
  • Recognising the symptoms of depression

    Recognising that you're depressed is your first step in accepting you need help. Depression can range from feeling low most of the time (mild depression), to feeling that life is no longer worth living (clinical depression). Often, your symptoms might seem physical, not mental, and sometimes other people might notice something’s wrong before you do.

    Depression can lower your mood and make you feel hopeless, worthless and exhausted. It can affect your sleep, appetite and your physical health. And it can stop you from getting on with daily activities and interfere with your home or work life.

    If you experience five or more of the following signs or symptoms of depression for most of the day, every day, for more than two weeks, you may be depressed.

    What you might be thinking 

    • Having difficulty concentrating, remembering things and making decisions
    • Being preoccupied with negative thoughts
    • Having a pessimistic view of the future
    • Having suicidal thoughts or thoughts of harming yourself
    • Blaming yourself or feeling unnecessarily guilty about things
    • Lacking self-confidence and self-esteem

    How you might be feeling mentally

    • Experiencing a sense of unreality 
    • Feeling numb, empty and helpless
    • Feeling tearful
    • Feeling irritable, impatient and intolerant of others
    • Having little motivation or interest in things
    • Getting no pleasure out of life
    • Feeling anxious or worried, restless and agitated
    • Feeling isolated or unable to relate to others

    How you might be feeling physically

    • Experiencing changes in your appetite or weight
    • Experiencing constipation
    • Having aches and pains without a physical cause
    • Feeling tired and lacking energy
    • Losing interest in sex
    • Experiencing changes in your menstrual cycle
    • Sleeping more or having disturbed sleep

    How you might be behaving

    • Crying a lot
    • Self-harming
    • Not doing well at work or avoiding social contact 
    • Distancing yourself from others, and not asking for support
    • Neglecting your hobbies and interests
    • Having difficulties in your home and family life
    • Smoking, drinking or using other drugs more than usual
    • Moving or speaking more slowly than before
  • Causes of depression

    Depression is a complex condition. It’s difficult to identify any single cause of it, and the causes can be different for different people. You can develop it for a whole range of different reasons. And you can also become depressed for no obvious reason. 
    Our biology. Lots of us don’t realise that depression can be related to our biology. For example, the children of parents who have had depression are more likely to have depression themselves. And there are other biological reasons for depression, such as taking particular prescription drugs or having an underactive thyroid. If you have diabetes or a heart condition you’re more likely to have an episode of depression. Getting a blow to your head that knocks you unconscious can also increase your risk.
    Our psychology. The way we see the world is shaped by what we learn throughout our lives, especially when we’re young and our personalities are being established. We know that our psychological make up, which includes things like our confidence and self-esteem, influences how likely we are to develop an episode of depression. You may be more vulnerable if you have certain personality traits, such as low self-esteem or being overly self-critical.
    Our social environment. Things in our environment will also change our risk of having a depressive episode. For instance, people with a stable relationship are less likely to become depressed even when faced with stressful events. You may be at greater risk of developing depression if you become cut off from your family and friends. Things like stress at work, financial pressures and other factors in our social environment can also contribute to an episode of depression.
    Stressful life events. Certain events and the meaning they have for us may also contribute. Some of us are able to grieve after a bereavement without developing depression, but for others it can trigger an episode. And if different life events happen together it’s more likely you’ll become depressed. For example, you might feel low after an illness and then experience a traumatic event, such as bereavement, which brings on depression.
  • Common types of depression

    Seasonal affective disorder (SAD). If your low mood is related to the seasons, you could have SAD. SAD usually comes on in autumn or winter, when there are fewer daylight hours, and gets better when the days get longer.
    Bipolar disorder. If you have major mood swings, alternating between spells of depression and spells of excessively high moods (mania), you could have bipolar disorder. Manic episodes can involve harmful and risky behaviour such as gambling, spending sprees and unsafe sex. 
    Postnatal depression. Many women get the ‘baby blues’ in the first week after giving birth. This is pretty common, but if your low mood lasts longer or begins later, you could have postnatal depression.
    Grief and depression. Grief and depression share many of the same characteristics, but grief is a healthy, natural response to loss, while depression is an illness. Whilst grief can trigger a bout of depression, it’s important to understand the difference between grief and depression. If you’re grieving, your feelings of loss and sadness come and go, but if you’re depressed, you’ll usually have a constant feeling of sadness.
  • Treatment for depression

    There's plenty of evidence that many forms of depression are treatable. The treatment you might be offered will be dependent on your specific situation.

    Exercise. This could be a programme of group exercise or a simple recommendation to increase the frequency of exercise you take.

    Self-help programmes. Your health professional might offer you a booklet that contains a structured programme of self-help that you will follow for around 12 weeks. 
    Cognitive behavioural therapy (CBT). This mode of treatment is the one that has the most evidence for helping people with depression. The basic idea is that our automatic assumptions about situations shape our emotions. CBT trains you to identify those assumptions and find ways to question them or challenge them. 
    Computerised cognitive behavioural therapy cCBT). cCBT is similar to CBT, but it's presented as an interactive computer programme. 
    Interpersonal therapy. If your relationships with others are a significant factor in your depression, you might be recommended this form of therapy. It focuses on helping you manage your relationships with your friends, colleagues and family.
    Other psychological treatments. These can include counselling, which is mainly about guiding you to manage your symptoms yourself.
    Antidepressants. You may be offered treatment with antidepressants, normally with a type of antidepressant called a selective serotonin reuptake inhibitor (SSRI). This will seldom be offered on its own without psychological treatment. 

Next steps

If you’re depressed, you may feel that nothing can help, but taking action can make a big difference. See our action plan for a list of practical things you can start doing as soon as you're ready. 

More support

  • Our support services

    The Bank Workers Charity exists to support current and former bank employees. Find out more about the services and support we provide.
  • My Possible Self

    My Possible Self is a research-led app which offers a holistic approach to mental health. It can help you to manage anxiety, tackle depression, ease stress and improve sleep.
  • Stress Check

    Our Stress Check has been designed by experts. Use it to find out if you're more stressed than you'd like. Then learn what you can do about it.

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