Behavioral endocrinology

Behavioral endocrinology is the study of hormonal processes and neuroendocrine systems that influence or regulate behavior. Analytical approaches include studies of natural variation among individuals within populations of a single species, sex differences, differences among species, and experimental manipulations of either the endocrine system or behavior itself.

Estrogens, together, make up a group of primary female sex hormones synthesized in the ovaries.

Testosterone is secreted by the testicles of males and the ovaries of females, although small amounts are also secreted by the adrenal glands. It is the principal male sex hormone and an anabolic steroid.

There has been much debate and research devoted to the relationship between testoserone and aggression.

Men produce approximately ten times more testosterone than women, so even low-testosterone men have more than any woman. Physically, it generates such male traits as body hair and pattern baldness. Psychologically, testosterone promotes:

Several studies have established that testosterone therapy has reduced negative mood, depression, fatigue, and self-esteem. 2

thyroxine (T4) and triiodothyronine (T3) are the main hormones released in the thyroid gland. They are synthesized from tyrosine and iodine in the blood stream. These hormones travel via bloodstream to almost every cell throughout the body and function to regulate their target cell's metabolism. These hormones are a product of the hypothalamic–pituitary–adrenal axis (HPA axis or HTPA axis). These organs function together as the hypothalamus releases thyroid stimulating release hormone (TSRH), which sends message to the pituitary gland to signal the thyroid gland to porcess and release thyroxine and triiodothyronine to the body. These hormones play a major role in the Nueroendocrine system which regulates the vital body functions of breathing, body weight, heart rate, muscle strength, cholesterol levels, especially body temperature. When your body has to much or two little of these hormones it has abnormal affect throughout your body:

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