Because RAD is lacking a background of significant research due to its rarity, the causes and risk factors as to why children develop reactive attachment disorder are not entirely conclusive. Some examples of causes that have been linked to possibly impacting the development of RAD include:
Central Nervous System (Brain and Spinal Cord) and Peripheral Nervous System (Cranial Nerves, Spinal Nerves, and Ganglia). This is the control center for the entire nervous system.All body sensations must be relayed from receptors to the CNS if they are to be interpreted and acted on. All of the nerve impulses that stimulate muscles to contract and glands to secrete must also originate in the CNS.
1 Adrenocorticotropic hormone, which stimulates the adrenal glands to secrete steroid hormones, principally cortisol. 2  Growth hormone, which regulates growth, metabolism and body composition. 3  Luteinising hormone and follicle stimulating hormone, also known as gonadotrophins.rolactin, which stimulates milk production Thyroid stimulating hormone, which stimulates the thyroid gland to secrete thyroid hormones. There are also some hormones that are produced by the hypothalamus and then stored in the posterior pituitary gland prior to being released into the bloodstream.