Glands are special organs in our body that produce and release substances like hormones, enzymes, and other fluids. They play a crucial role in regulating various bodily functions, such as growth, metabolism, and mood. For example, the thyroid gland helps control how fast our body uses energy, while the pancreas produces insulin to manage blood sugar levels. There are two main types of glands: endocrine and exocrine. Endocrine glands, like the pituitary gland, release hormones directly into the bloodstream, affecting distant organs. In contrast, exocrine glands, such as salivary glands, secrete substances through ducts to specific areas, like the mouth, aiding in digestion.