Causes
- Autoimmune reactions (Hashimoto's in hypothyroidism, Graves' disease in hyperthyroidism)
- iodine imbalances
- thyroid nodules
Symptoms
- Hypo: weight gain
- extreme cold intolerance
- fatigue
- constipation
- hair loss. Hyper: rapid weight loss
- palpitations
- heat intolerance
- hand tremors
Risk Factors
- Female biological sex
- family history of thyroiditis
- severe chronic stress