5-Hydroxytryptophan is an intermediate metabolite in the pathway from tryptophan to serotonin. Serotonin is involved in the body's control of sleep, mood regulation, and appetite.
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Cortisol Manager™ dietary supplement combines stress-reducing ingredients and cortisol-lowering botanicals to help reduce stress and relieve occasional sleeplessness.
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Thyroid
The thyroid gland or simply, the thyroid, is one of the largest endocrine glands. The thyroid gland is found in the neck, below the thyroid cartilage (which forms the laryngeal prominence, or 'Adam's Apple').
The thyroid gland controls how quickly the body uses energy, makes proteins, and controls how sensitive the body should be to other hormones. It participates in these processes by producing thyroid hormones, the principal ones being triiodothyronine and thyroxine (T4). These hormones regulate the rate of metabolism and affect the growth and rate of function of many other systems in the body. T3 and T4 are synthesized from both iodine and tyrosine. The thyroid also produces calcitonin, which plays a role in calcium homeostasis.
Hormonal output from the thyroid is regulated by thyroid-stimulating hormone (TSH) produced by the anterior pituitary, which itself is regulated by thyrotropin-releasing hormone (TRH) produced by the hypothalamus.
The most common problems of the thyroid gland consist of an overactive thyroid gland, referred to as hyperthyroidism, and an underactive thyroid gland, referred to as hypothyroidism.
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