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How Common Is ADHD in Young Children?

ADHD affects about 2%–5.7% of children aged 3–6. ADHD is more often diagnosed during the preschool years in boys than girls, with boys showing more hyperactive behaviors and girls tending to be inattentive. Girls are frequently diagnosed later, as their behaviors are commonly mistaken for shyness or simply being “well-behaved.”

Is It ADHD or Typical Behavior?

  • Difficulty staying safe
  • Aggression toward others
  • Being asked to leave preschool or daycare

Diagnosing ADHD in Preschoolers

  • Underlying Issues: Anxiety, trauma, or sensory sensitivities can also affect attention and activity levels.
  • Sleep: Poor sleep can mimic or worsen ADHD symptoms; children with ADHD also commonly struggle with sleep issues.
  • Diet: High sugar intake, red food dye, or malnutrition may influence behavior.

What Can Parents Do First?

If you suspect your child may have ADHD, start by focusing on their sleep, diet, and routines:

  1. Improve Sleep Habits
    Ensure a consistent bedtime routine and watch for signs of underlying sleep issues such as snoring (a sign of obstructive sleep apnea) or restlessness. Melatonin, given 1–2 hours before bedtime, may help your child sleep. (Always consult with a doctor first.)
  2. Check Nutrition
    Limit sugary foods and artificial dyes. A balanced diet can improve your child’s focus and behavior.
  3. Structure and Predictability
    Young children with ADHD thrive on routines. Use tools like visual schedules, timers, and clear transitions between activities to reduce meltdowns.

Behavioral Therapy: The First Line of Treatment

Behavior management is the first line of treatment with young children. Parent-Child Interaction Therapy (PCIT) and Parent Management Training (PMT) are evidence-based approaches that help parents manage challenging behaviors while building a stronger parent-child bond.

Key strategies include:

  • Positive Reinforcement: Praise specific behaviors you want to see more of. For example, “I love how you’re sitting so quietly at the table!”
  • Clear Instructions: Keep commands brief and specific, like “Put the block in the box,” instead of long or vague directions.
  • Support Transitions: Use verbal and visual transition prompts such as cue cards, timers, or small rewards to help your child move between activities smoothly.

These techniques help children develop self-regulation and may reduce frustration for both you and your child.

What About Medication?

For young children, medication is considered in cases of severe safety concerns or when behavioral interventions alone aren’t enough. Medications should always be used in combination with behavioral interventions. Discuss with a qualified physician about recommended options. Methylphenidate and Guanfacine are commonly prescribed first line in young children, however it’s important be aware that young children are more likely to experience side effects like irritability, appetite loss, and sleep disturbance. If your doctor recommends medication, it will be introduced slowly and at low doses.

How Can Therapy Help My Child?

Therapies tailored for ADHD may help improve your child’s emotional and social skills:

  • Occupational Therapy (OT): Helps children with sensory issues or hyperactivity regulate their bodies through physical strategies.
  • Social Skills Executive Functioning Groups: Usually in dyads or triads, scaffolds children in building skills such as reciprocity, taking turns, and maintaining friendships which are often impacted by ADHD symptoms.
  • Parent Training: Teaches you how to support your child with ADHD-specific tools and strategies that are evidence-based to work.

Seeing ADHD as a Strength

ADHD is a lifelong condition, but early intervention and support can make a big difference. The skills you build now will help your family navigate future challenges with resilience and understanding.

Most importantly, remember that you are not alone. Whether through behavioral therapy, educational support, or connecting with other parents, there are many ways to support your child’s development and help them thrive.

If you have concerns about ADHD or are looking for support, talk to your pediatrician or a specialist who works with young children. Children’s Health Council is always here to support you – reach out to us at careteam@chconline.org or 650-688-3625. Early guidance can set the stage for a lifetime of growth and success.


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