hypothalamus

Hyper- and Hypothyroidism – Causes and Solutions

The thyroid gland is a ‘butterfly-shaped’ gland that is situated on the front of the lower neck. It’s sited just below your Adam’s apple, with one lobe on each side stretching upwards and downwards along the windpipe.The thyroid gland secretes two thyroid hormones; triiodothyronine (T3) and thyroxine (T4) – and also a peptide hormone, calcitonin. The thyroid hormones regulate the metabolic rate, the rate in which nutrients in the body are converted into energy, …

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Testosterone Part 1: What it is and how it is made

Testosterone Part 1: What it is and how it is made By Joachim Bartoll, May/June 2015, for Classic Muscle Newsletter, issue 10 Testosterone is a 19-carbon steroid hormone belonging to the androgen group. It’s made from cholesterol (like all sex hormones) and its immediate precursor is DHEA. On average, a healthy man’s body will produce about 7 mg of testosterone a day, but not all of that Testosterone can be used by our bodies. …

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