Why even babies and children can become depressed

While it’s mostly adults who suffer from mood disorders, even babies and children can experience depression. However, it may display itself differently than in grown-ups.

Depression in young children often manifests through behavioral and emotional changes rather than verbal expressions of sadness or despair, as they may not yet have the language or self-awareness to describe their feelings.

Signs of depression in babies and toddlers:

    • Trouble sleeping or snoozing too much.
    • Loss of appetite or feeding difficulties.
    • Reduced engagement with toys, games, or people.
    • Appearing inactive or uninterested in the environment.
    • Lack of emotional expression, such as rarely smiling or laughing.
    • Slower progress in language, motor, or social skills.

Signs of depression in children (preschool age and older):

    • Persistent sadness, irritability, or misery.
    • Frequent temper tantrums or disproportionate frustration.
  • Social withdrawal
    Image of a child looking down and walking away from his friends in a classroom.

    • Avoiding friends, family, or social activities they previously enjoyed.
    • Frequent stomachaches, headaches, or other unexplained physical symptoms.
    • Sleeping too much or too little.
    • Changes in eating habits, such as eating too much or too little.
    • Seeming tired or lethargic, even after seemingly sufficient rest.
    • Trouble focusing on tasks, schoolwork, or activities.
    • Engaging in risky behaviors or talking about wanting to hurt themselves (in older children).

Causes and risk factors of depression in children:

Depression in children can result from a combination of genetic, biological, environmental, and psychological factors, just as it can in adults.

Stressful life events, family conflict, trauma, or a family history of mood disorders can increase the risk of becoming depressed.

Biological factors:

    • A family history of depression or other mood disorders increases the likelihood of a child developing a mental illness.
    • Specific genetic predispositions related to neurotransmitter regulation, like serotonin or dopamine.
    • Disruptions in brain regions that are associated with emotion regulation (the amygdala, prefrontal cortex).
    • Maternal depression, anxiety, or stress during pregnancy can affect fetal brain development.
    • Birth complications, low birth weight, or premature birth could increase vulnerability.
    • Children with chronic medical conditions (asthma, diabetes, epilepsy) are at higher risk due to the psychological strain and limitations imposed by their condition.
    • Though more relevant to older children and adolescents, hormonal shifts (during puberty or due to endocrine disorders) may influence mood.

Psychological factors:

    • Insecure or disrupted attachment to caregivers, especially during infancy, can lead to emotional dysregulation and depression.
    • Early neglect or inconsistent caregiving can result in feelings of insecurity or mistrust.
    • Witnessing domestic violence or substance abuse within the household.
    • Experiencing or witnessing a traumatic event, such as a natural disaster or car accident.
    • Death of a parent, sibling, or close caregiver.
    • Loss of a pet or an important figure in their life.
    • Repeated experiences of failure or rejection, even in early childhood, can make us feel inadequate and cause depression.

Environmental and social factors:

    • Living with a parent who has untreated depression, anxiety, or other psychological issues.
    • Exposure to inconsistent or unpredictable parenting due to mental illness or substance abuse.
    • Moving to a new location, starting a new school, or separation from a primary caregiver.
    • Parental divorce, custody disputes, or family instability.
    • Financial hardship that creates stress in the household.
    • Difficulty making or maintaining friendships.
    • Socioeconomic disadvantage or living in a marginalized community.
    • Exposure to systemic racism, discrimination, or prejudice.
    • Pressure to conform to cultural or familial expectations.
    • Living in a chaotic or unstable environment (overcrowded housing, unsafe neighborhoods).
    • Experiencing displacement or living in a refugee or migrant situation.

Developmental and behavioral factors:

    • Developmental delays in speech, motor skills, or social skills may lead to frustration and failure.
    • Conditions like autism spectrum disorder (ASD) or ADHD increase vulnerability to depression due to social challenges and misunderstandings.
    • Harsh discipline, excessive criticism, or lack of emotional warmth from caregivers.
    • Overly high expectations or perfectionistic parenting.
  • Overexposure to negative media
    Two children looking at a tablet together.

    • Frequent exposure to distressing news, violent content, or age-inappropriate material may affect a child’s sense of safety and emotional well-being.

Physiological and sensory factors:

    • Overwhelming sensory environments (loud noises, bright lights) may lead to chronic tension and emotional withdrawal in children with sensory sensitivities.
    • Chronic sleep deprivation or poor sleep hygiene can influence emotional regulation and aggravate mood disorders.
    • Nutritional deficiencies (vitamin D, iron, omega-3 fatty acids) have been linked to mood disorders.
    • Lead poisoning or exposure to environmental pollutants can upset brain development and increase the risk of mood disturbances.

How these genetic, biological, environmental, and psychological factors interact:

Depression in children often results from a combination of the above factors, rather than a single cause.

For example:

  • A child with a genetic predisposition to depression might be more vulnerable to the effects of parental divorce or bullying.
  • A stressful environment can degrade an already sensitive temperament.

What to do:

This is what to do if you suspect a baby or child is showing signs of depression:
A pediatrician checking up on a child.

Rule out underlying medical issues and get the necessary guidance.

A mental health professional can assess and provide therapy or interventions if needed.

Maintain a nurturing, stable environment, and encourage open communication.

Keep track of behaviors, sleep, and eating patterns to share with professionals.

Conclusion

Quick action, whether through therapy, parenting support, or environmental changes, aids in mitigating the long-term impact of depression on a child’s emotional and social development.

That’s why early recognition and intervention are so important in helping young children overcome depression and build emotional resilience.

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