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Hello, welcome to the Thyroid in Practice channel. I'm Dr. Mario Araujo Junior, pathologist specializing in thyroid. Today, we will address a crucial and little-talked about topic: the influence of thyroid hormones on mood, cognition and emotional well-being. The thyroid, a small gland in the neck, regulates metabolism and several essential body functions, but it also directly impacts the brain and mental health. In this video, you will understand how hypothyroidism and hyperthyroidism affect mood, sleep, and cognition. Video Topics: [0:00] Introduction [1:05] How Thyroid Hormones Affect Mood and Mental Health [2:20] Hypothyroidism: Symptoms That Affect Emotional and Cognitive [4:10] Hyperthyroidism: When excess hormone affects mental balance [5:55] Impact of thyroid hormones on memory and concentration [7:30] How the thyroid influences sleep quality [9:15] Importance of early diagnosis and adequate treatment The thyroid exerts a fundamental role not only in metabolic regulation, but also in emotional and cognitive balance. In hypothyroidism, where there is an insufficient production of thyroid hormones, the patient may feel tired, sluggish and even sad and apathetic. These symptoms are often confused with depression, as the lack of hormones affects neurotransmitters such as serotonin, essential for well-being. On the other hand, hyperthyroidism, where there is an excess of hormones, speeds up the metabolism and can cause nervousness, irritability and insomnia, often confused with anxiety disorders. Additionally, thyroid hormones play an essential role in cognition. Hypothyroidism can lead to difficulties with memory, concentration and a feeling of “brain fog”, while hyperthyroidism causes mental hyperactivity, impairing focus. Both conditions can severely impact the quality of sleep, which is essential for well-being. In hypothyroidism, sleep can be deep, but not restful, while hyperthyroidism causes insomnia, worsening tiredness and irritability. Mental health and the thyroid are closely connected. If you experience sadness, anxiety, extreme tiredness or difficulty concentrating, it is important to consider a thyroid health assessment. Often, a simple blood test can reveal hormonal changes and enable treatment that brings balance and mental well-being. Along with medical treatment, healthy habits such as a sleep routine, balanced diet and physical activity are important allies. Did you like this content? Like the video and subscribe to the Thyroid in Practice channel for more information about thyroid health and well-being. Leave your questions in the comments, and see you in the next video! #Thyreoid #MentalHealth #Hypothyroidism #Hyperthyroidism #Patologista #DrMarioAraujo #BemEstar #TireoideNaPratica #QualidadeDeVida