What is Thyroid Gland?
The thyroid gland is located in the neck and produces hormones (T3, T4) that regulate metabolism, energy levels, body temperature, and growth. It sets the overall "tempo" of the body.
Key Functions
- •Metabolic rate — how fast the body burns energy
- •Energy and vitality — physical and mental stamina
- •Temperature regulation — body heat production
- •Growth and development — especially in early life
Why does Thyroid Gland matter?
The thyroid gland matters because its hormones help set the pace of metabolism in nearly every tissue. Thyroxine (T4) and triiodothyronine (T3) influence energy use, body temperature, heart rate, digestion and brain development in children.
Its output is controlled by a feedback loop with the pituitary gland, which releases thyroid-stimulating hormone (TSH). Iodine from the diet is needed to make thyroid hormones, which is why iodized salt was introduced in many countries.
What happens when the Thyroid Gland goes wrong?
When the thyroid makes too little or too much hormone, many body systems are affected. Hypothyroidism can cause fatigue, cold intolerance, weight gain, and a slower heart rate; Hashimoto's thyroiditis is a common cause in regions with enough iodine.
Hyperthyroidism, often from Graves' disease, can cause a fast or irregular heartbeat, weight loss, heat intolerance, and anxiety. Thyroid problems are diagnosed with blood tests such as TSH and free T4, and both conditions are treatable with appropriate medical care.
In ONDA Life
Part 10 describes the Thyroid as "the driver of metabolic tempo and the energy of manifestation." Optimal thyroid function supports the physical energy needed for vocal projection, presence, and sustained social engagement.