Do you have a version of this post in English?
I think the poster is saying that the severity of the stroke is measured on a scale , people 'scoring' over 7 may have a very hard road ahead.... less than that is better but still not a lot of fun...
Speaking from experience...., my late dad had a couple of strokes. Strokes affect a huge amount of people but are not one of the more 'favoured causes' where charity giving is concerned. If anyone wants to donate to a cause... you could do worse than to help the Stroke Association... one day you might need some help. We all might.