Ehlers- Danlos Syndrome (EDS) is a genetic disorder affecting every connective tissue in the body. The body of an individual with EDS cannot properly form collagen, the "glue" that holds the body together. The resulting weakness causes many debilitating symptoms and an array of disorders may accompany EDS. Individuals with EDS can also have Cranio-Spinal Instability (CSI), a lack of stability of the neck and skull. Because of this lack of stability the skull may sink down onto the brain, forcing the cerebellum out of the skull creating a condition called cranial settling. This condition can mimic Chiari 1 Malformation (CM1). The resulting pressure on the cerebellum and the brainstem progressively damages both structures over time. In addition to this, the odontoid bone in the neck, due to lack of stability, may push backwards into the brainstem, causing further damage. The cerebellum controls the body's sensory processing center. The brainstem controls the autonomic nervous system, or all the body's functions that you do without thinking about. Dysautonomia, or the dysfunction of the autonomic nervous system, often results from damage to these vital parts of the brain. This can affect all of the body's organ systems. All of these disorders can occur in conjunction with each other, and combined they can cause all the symptoms listed above and many more.