This is very interesting. Even though I know nothing about this and had to google what orthostatic means, I wonder how they came up with the idea to do this study. Why drinking water? Why not roll on the bed for 10 mins before getting up? What prompted them to think water drinking would be effective?
It is interesting to seek out inventors and scientists and ask "Do you remember the spark (i.e. an idea or question) that got you started?"
The rigor of science is almost always emphasized, because the core of the scientific method is empirical validation. Still, we should not discount the creative spark that sets it in motion. What inspires and motivates people to test an idea? Not a small number of scientific theories arise from unexpected places -- patterns, connections, metaphors, even dreams.
