The correct answer is bpa in bottles affects particular glands.
An endocrine disruptor is a chemical which at certain doses can disrupt the normal endocrine function of the organism. The effects of an endocrine disruptor can be quite severe, from birth deficits and cancerous tumours to developmental disorders.
One of the most commonly detected chemicals in the human body is bisphenol A (BPA), a material used in the production of plastics. It is considered an exoestrogen, meaning that it possesses hormone- and estrogen-like properties. These properties affect specific glands of the human body causing reproductive and neurological problems, obesity, diabetes and some types of cancer.
Feedback from estrogen is a mechanism that the human body uses to control the FSH release from the gonads. This is not considered an endocrine disruptor since it is a natural mechanism. In addition, iodine is a chemical element essential for the synthesis of thyroid hormones. Any lack of it is not considered an endocrine disruptor. Finally, calcitonin is a hormone produced in humans by specific cells of the thyroid gland and it is not considered an endocrine disruptor.
