Final answer:
Cortisol is the hormone responsible for providing negative feedback to the hypothalamus and pituitary gland to suppress the secretion of CRH and ACTH, maintaining hormone balance.
Step-by-step explanation:
The hormone that feeds back to the hypothalamus and pituitary to suppress CRH and ACTH production is cortisol. Cortisol is a glucocorticoid hormone released by the adrenal cortex in response to long-term stress. The release of ACTH is regulated by corticotropin-releasing hormone (CRH) from the hypothalamus. When cortisol levels rise, they apply negative feedback to the hypothalamus and pituitary gland, which in turn, reduces the secretion of CRH and ACTH. This is an important regulatory mechanism to prevent the overproduction of cortisol.