Hypothalamus

The hypothalamus is a small, almond-shaped section of the brain located within the limbic system at the base of the brain. It is considered the control centre of the autonomic nervous system, which includes operations such as eating, drinking, body temperature regulation, and releasing hormones into the bloodstream. The hypothalamus is also involved in primary emotions such as fear and pleasure. One of the primary functions of the hypothalamus is to act as a regulator of the body’s homeostasis, the state of stability and balance in the body and its hormone-regulated process. It provides feedback on conditions inside the body, such as temperature, hunger, sleep, stress, and other bodily sensations, and then controls the body’s reactions and hormones. The temperature regulation qualities, for example, are credited to the hypothalamus recognizing when the body is becoming too warm or too cold and then activating the correct reaction to correct the body’s temperature, such as sweating or shivering. The hypothalamus is responsible for controlling hormone-based activities in the body. It releases chemicals directly into the bloodstream and, through the pituitary gland, influences other hormone-based processes and functions. Its chemical signals trigger the sensation of hunger and thirst and stimulate glands to produce hormones, including those that control the reproductive system and brain development. The hypothalamus has also been linked to other functions, such as the regulation of mood and the secretion of growth and thyroid hormones. Lastly, the hypothalamus also plays a role in emotion, or the part of the brain which makes us feel fear, pleasure, anger, and so on, in response to stimuli.