Can borderline t4 levels cause depression in teens?

Yes, borderline T4 levels can potentially contribute to depression in teens. Thyroid hormones, including T4, play a crucial role in regulating mood and cognitive function. When these hormone levels are not optimal, it can lead to symptoms of depression, fatigue, and mood swings. If a teen is experiencing depressive symptoms alongside borderline thyroid levels, it's important to consult a healthcare professional for evaluation and possible treatment.