And this over here is the adrenal gland.
It sits right on top of kidneys on both sides of the body.
In medicine, we would say bilaterally.
This gland not only produces cortisol, which is called the stress hormone, it also produces aldosterone, which is important for blood pressure and electrolyte levels.
It is also important for production of androgens, important for libido, sexual drive and even mental state and health.