hehe.. well it's not the writing part.. it's the brain being
active.. body may be weak but brain is still very much alive and
thinking left right centre. 
the thing is that it isn't so much about the knowledge of your
language (which is still i mportant) but about expressing those
thoughts and feelings down. many pple with good english cannot
express themselves. and well some pple just don't like to write!
they rather talk, or have meaning conversations, or express
themselves thru music or art, or just sit there thinking to
themselves. 