Complex sentence: The study does not determine whether hypermobility is associated in any way with psychiatric dysfunction or dysautonomia; many factors could explain the relation, and hypermobility's unwelcome gift of chronic pain may very well cause many people anxiety or depression.
Split into simpler sentences: The study does not determine whether hypermobility is associated in any way with psychiatric dysfunction or dysautonomia; many factors could explain the relation. Hypermobility's unwelcome gift of chronic pain may very well cause many people anxiety or depression.