Complex sentence: Growth hormone-releasing factor (GHRH) is a peptide hormone, produced by the hypothalamus it signals the anterior of the pituitary gland to produce human growth hormone (HGH).
Split into simpler sentences: Growth hormone-releasing factor (GHRH) is a peptide hormone, produced by the hypothalamus. It signals the anterior of the pituitary gland to produce human growth hormone (HGH).