7 Signs and Symptoms of Depression to Take Seriously

In this article

Depression can affect mood, energy, sleep, concentration, motivation, relationships, and the ability to enjoy everyday life. It does not look exactly the same in every person, and having one symptom does not by itself mean someone has a depressive disorder. What matters is the overall pattern, how long symptoms have lasted, and how much they are interfering with daily functioning.

Depression Can Have Different Causes and Presentations

Depression is not a choice or a character flaw. It can develop through a combination of biological, psychological, social, and environmental factors. A proper assessment looks at the whole picture, including medical conditions, medications, substance use, recent losses or stressors, and other mental health concerns that can produce similar symptoms.

Treatment may include psychotherapy, medication, lifestyle changes, social support, or a combination of approaches depending on the person and the severity of symptoms. A family physician, nurse practitioner, psychiatrist, psychologist, Registered Psychotherapist, or Registered Social Worker may be involved in assessment or treatment depending on the situation.

Some depressive conditions are persistent or recurrent. Depression can also occur during pregnancy or after childbirth, during seasonal changes, or as part of another condition. Bipolar disorder is different from unipolar depression: a person with bipolar disorder experiences depressive episodes as well as periods of mania or hypomania. If symptoms suggest bipolar disorder, an appropriate medical or psychiatric assessment is important because treatment considerations differ.

7 Common Signs and Symptoms of Depression

1. Persistent Sadness, Emptiness, or Low Mood

A person may feel sad, numb, empty, or hopeless much of the day. For some people, the change is obvious; for others, it is more noticeable as irritability, withdrawal, or a sense that everything feels harder than usual.

2. Loss of Interest or Pleasure

Activities, hobbies, relationships, or routines that used to feel rewarding may stop feeling enjoyable. This loss of interest or pleasure is one of the core symptoms clinicians consider when assessing depression.

3. Hopelessness or Persistent Negative Thinking

Depression can change how a person sees themselves, other people, and the future. They may feel like a failure, believe things will never improve, or become unusually self-critical.

4. Significant Changes in Energy or Sleep

Some people with depression feel exhausted, slowed down, or unable to start ordinary tasks. Sleep may increase or decrease, and poor sleep can make concentration and emotional regulation harder.

5. Changes in Behaviour or Increased Risk-Taking

A noticeable change in behaviour can be a sign that someone is struggling. This may include increased substance use, reckless behaviour, social withdrawal, or other attempts to cope with distress. Risk-taking can have many causes, so it should be understood in context rather than treated as proof of depression.

6. Difficulty Concentrating or Making Decisions

Depression can affect attention, memory, planning, and decision-making. People sometimes describe this as “brain fog” or feeling mentally slowed down.

7. Irritability, Agitation, or Anger

Depression is not always expressed as sadness. Some people become more irritable, restless, frustrated, or short-tempered than usual. These changes can occur in people of any gender or age.

When to Get Help

Consider speaking with a regulated health professional if symptoms are persistent, worsening, or interfering with work, school, sleep, relationships, self-care, or everyday functioning. A professional assessment can also help rule out medical conditions or other mental health concerns that may look similar to depression.

If someone is thinking about suicide, feels unable to stay safe, or is in immediate danger, seek urgent help rather than waiting for a routine appointment. In Canada, call or text 9-8-8 for suicide crisis support. If there is immediate danger, call 9-1-1 or go to the nearest emergency department.

Bayridge Counselling Centres provides psychotherapy and counselling support across Ontario through regulated mental health professionals.