Male endocrine system
endocrine, endocrinology, growth, development, thyroid, pituitary, hormones, metabolism, glands, hypothalamus, parathyroids, adrenals, pineal body, ovaries, testes, growth hormone, puberty, precocious puberty, prolactin, endorphins, adrenaline, epinephrine, ovulation, menstrual cycle, oxytocin, diabetes, insulin, gigantism, hypothyroidism, hyperthyroidism, graves' disease, cushing's syndrome, blood sugar levels, estrogens, testosterone, androgens, melatonin, pancreas, corticosteroids, pregnancy, cd1endocrinology