That explains my prone position rather well. Pretty much that's it. It's all a bit deep for me to go into in detail here, but you get the gist. Werdnig-Hoffmann Disease is a rare inherited neuromuscular disorder of children. The earlier the onset, the more serious the outcome usually is.
Mental development is usually normal.
Typically, the child does not gain head control, cannot turn over and is unable to sit or stand. The rate of progression of Werdnig-Hoffmann Disease varies. In the form that begins in utero, generalised muscle atrophy and weakness tend to progress rapidly. The infant may be unable to swallow. The form of Werdnig-Hoffmann Disease that begins during the first few months of life may have a more slowly progressive course, even extending into adult life.