List any two functions of thyroid gland in humans.

Explanation

**Step-by-Step Solution:**

1. **Identify the Gland**: The thyroid gland is the largest endocrine gland in the human body. It has a distinctive butterfly or H-shape and is located on either side of the trachea.

2. **Hormonal Secretion**: The thyroid gland secretes two primary hormones: Thyroxine (T4) and Thyrocalcitonin (also known as calcitonin).

3. **Function 1 - Metabolism Regulation**: One of the main functions of the thyroid gland is to regulate metabolism. Thyroxine (T4) plays a crucial role in controlling the metabolism of proteins, carbohydrates, and fats in the body. This means it helps the body convert food into energy and manage how energy is used.

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