Sleep and appetite disturbances are associated with what part of the brain?

A. Cerebral peduncles: The cerebral peduncles are major motor pathways connecting the brainstem to the cerebrum. They are primarily involved in motor control and do not regulate sleep or appetite. B. Hypothalamus: The hypothalamus is a critical regulatory center for homeostasis, controlling sleep-wake cycles, appetite, thirst, and energy balance. Dysregulation in this region can lead to disturbances in sleep and eating behaviors. C. Substantia nigra: The substantia nigra is part of the basal ganglia involved in movement control through dopaminergic pathways. While it affects motor function, it does not directly govern sleep or appetite regulation. D. Pituitary gland: The pituitary gland secretes hormones that influence growth, metabolism, and reproductive functions. Although it works with the hypothalamus, it is not the primary structure controlling sleep and appetite.