What is the measurement of hypothalamus?

The hypothalamus is a small brain region, measuring approximately 4 grams in weight and about the size of an almond, typically around 3-4 centimeters long in humans. It is located below the thalamus and above the brainstem, playing a crucial role in regulating various bodily functions, including temperature, hunger, thirst, and circadian rhythms. Despite its small size, the hypothalamus has a significant impact on the endocrine system and homeostasis.