Exploring the Link Between Thyroid Function and ADHD Symptoms in Children

New study reveals a possible link between thyroid function and ADHD symptoms in children 🧠🔗 Could thyroid hormone levels be a key factor in understanding and treating ADHD? More research is needed, but this insight is a step forward!

Attention Deficit Hyperactivity Disorder (ADHD) is a common neurodevelopmental disorder that affects millions of children worldwide. It is characterized by symptoms such as inattention, hyperactivity, and impulsivity. While the exact cause of ADHD remains unclear, research has suggested that there may be a connection between ADHD symptoms and thyroid function. A recent study conducted at Anhui Provincial Children’s Hospital in China has shed light on this potential link, providing valuable insights for parents, educators, and healthcare professionals.

Understanding ADHD and Thyroid Function

ADHD affects a child’s ability to focus, control their impulses, and regulate their activity levels. The thyroid gland, located in the neck, produces hormones that are crucial for regulating metabolism, growth, and development. Thyroid hormones also play a crucial role in brain development and function, which may explain their connection to ADHD symptoms.

The Study

The researchers at Anhui Provincial Children’s Hospital conducted a retrospective study on children diagnosed with ADHD between October 2021 and May 2022. The study aimed to investigate the relationship between thyroid hormones, particularly Thyroid Stimulating Hormone (TSH), and ADHD symptoms in children. The Conners 3 scale, a widely used and validated screening instrument, was used to assess the severity of ADHD symptoms.

Key Findings

The study revealed four significant findings:

  1. TSH levels were positively correlated with the Conners 3 scale and Hyperactivity Index (HI) scores, indicating that higher TSH levels were associated with more severe ADHD symptoms, particularly hyperactivity.
  2. TSH, serum ferritin, and lactic acid levels were significantly higher in ADHD children with hyperactivity compared to those without hyperactivity.
  3. TSH and lactic acid levels were independently associated with HI, suggesting a potential link between thyroid function and hyperactivity in children with ADHD.
  4. TSH demonstrated a relatively high accuracy in distinguishing ADHD children with hyperactivity from those without hyperactivity.

Implications and Future Research

The results of this study suggest a possible connection between thyroid function, particularly TSH levels, and ADHD symptoms in children. This information may help healthcare professionals better understand the factors contributing to ADHD symptoms and develop more effective treatment plans.

It is important to note that this study has several limitations, including a small sample size and a single-center design. Future research should involve larger, multicenter studies to confirm these findings and establish a causal relationship between thyroid function and ADHD symptoms. Longitudinal studies and randomized controlled trials (RCTs) are also necessary to further explore this potential link.


The study conducted at Anhui Provincial Children’s Hospital provides valuable insights into the possible relationship between thyroid function and ADHD symptoms in children. While more research is needed to confirm these findings and understand the underlying mechanisms, this study highlights the importance of considering thyroid function in the assessment and treatment of ADHD. As our understanding of the connection between thyroid function and ADHD symptoms grows, it may lead to improved diagnosis, treatment, and support for affected children and their families.

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