In simple terms, when you are angry and stressed, your body's immune system can become disrupted, regulating abnormally and causing a situation of "attacking oneself" (producing antibodies that damage thyroid cells).
The thyroid undergoes "attacks," resulting in inflammation, with the most common manifestations being thyroid enlargement and nodules.
2. Thyroid disorders can cause "negative emotions"
If the thyroid itself has problems, it can also cause severe emotional fluctuations in individuals.
Excessive thyroid hormone leads to hyperthyroidism: Individuals become easily anxious and irritable, prone to temper outbursts.