Did you know that two-thirds of astronauts who are in space for a lengthy amount of time come home only to report vision problems such as papilledema? Why? Because spinal fluid is very positional. And gravity – or lack thereof – plays a crucial role in keeping levels balanced. “On Earth, this spinal fluid system is designed to accommodate changes whether a person is sitting, standing or lying down. But in space, ‘the system is confused by the lack of the posture-related pressure changes,’” ¹ My Experience When I first developed a spinal fluid leak, the tell-tale sign for my doctor was the fact that my pain was relieved when…