Ultimately your brain - via the hypothalamus. And that's controlled by your genes.
cortisol
A hormone called insulin regulates your sugar levels.
Parathyroid hormone (PTH) controls the metabolism of calcium in the body by increasing calcium levels in the blood through actions on the kidneys, bones, and intestines.
The pituitary gland controls the secretion of growth hormone.
Growth hormone controls growth.It is secreted by pituitary gland.
Insulin
It controls the phosphate and calcium levels. So mainly affect on intestine ans bones.
insulin is a hormone that controls your blood sugar levels. without insulin, your blood sugar levels could be too high or too low.
Prolactin is a hormone and any drug which acts on the CNS can affect hormone levels - either by intent, or as an unintended side effect. CNS stimulants often increase dopanine levels .. and dopamine inhibits the secretion of prolactin (which controls lactation).
the growth hormone
The element important to the hormone that controls metamorphosis in tadpoles is iodine. Thyroxine, a thyroid hormone that plays a key role in regulating metamorphosis, is synthesized from iodine and tyrosine. Adequate iodine levels are necessary for the proper functioning of the thyroid gland and the production of thyroxine.
"Trophic" describes any hormone that controls the secretion of another hormone