Researchers have discovered a possible genetic cause for hypermobility (commonly known as double-jointedness) and a range of associated connective tissue disorders such as hypermobile Ehlers-Danlos syndrome, according to preliminary findings. For those with hypermobile Ehlers-Danlos syndrome (EDS), the same conditions that create fragile connective tissue can cause a range of symptoms that, on the surface, can seem unrelated: physical conditions such as joint pain, chronic fatigue, thin tooth enamel, dizziness, digestive trouble and migraines; and psychiatric disorders, such as anxiety and depression. Women with hypermobile EDS may also be at increased risk for endometriosis or uterine fibroids. Researchers have linked...