THE ENDOCRINE GLANDS are often called ductless because they pass their secretions directly into the blood or lymph, instead of using secretory ducts. The chemical substances secreted by these glands are called hormones – chemical messages which act at a distance. Hormones have a profound effect on all the body´s functions, including growth, digestion, energy levels, heat, sexuality, water, and fluid retention.
THYROID GLAND
The thyroid gland is located in the lower front part of the neck. It produces thyroid hormones that regulate the body´s metabolism. It also plays a role in bone growth and the development of the brain and nervous system in children. The pituitary gland controls the release of thyroid hormones. Thyroid hormones also help maintain normal blood pressure, heart rate, digestion, muscle tone, and reproductive functions.
The thyroid gland controls the metabolic rate of the body and the speed at which the chemical processes of the body occur. Like a thermostat, it regulates the level of body heat and energy produced. Regulates growth, repair, and waste processes. Any imbalance in the thyroid gland has serious consequences. Even a slight over-secretion will result in nervous irritability. A slight under-secretion will result in a feeling of fatigue and lethargy.
PARATHYROID GLANDS
The parathyroid glands are two pairs of small glands embedded in the surface of the thyroid gland, one pair on each side. They release parathyroid hormone, which plays a role in regulating calcium and phosphorus levels in the blood and bone metabolism.
ASANAS – form only a small part of the entire yoga system, but they are very important.
BENEFITS OF THE ASANAS – affect the glands, nerves, muscles, all the organs of the body, and much more…
The most important effect of asana practice – exerts pressure on the endocrine glands, resulting in the regulation of the hormones secreted by these glands
FOR EXAMPLE – Sarvangasana, The shoulder stand, has an effect on the THYROID GLAND, which controls the metabolism of the whole body