Autonomic tone, the balance between sympathetic and parasympathetic activity, is regulated by the

By the hypothalamus. The hypothalamus is crucial for living as it assumes a vital part. It controls certain metabolic procedures and different exercises of the Autonomic Nervous System. It blends and secretes neurohormones, regularly called hypothalamic-discharging hormones. 
The hormones from the hypothalamus administer physiologic capacities, for example, temperature control, thirst, hunger, rest, inclination, sex drive, and the arrival of different hormones inside the body. This territory of the cerebrum houses the pituitary organ and different organs in the body.