ok will someone please explain these parts of bitcomet to me please

ok first i want to know what the health tab means cause i dont get it then i want to know how high i have make my u/d ratio so that i im even downloading and uploading and then i want to know what all the little symbols next to your downloads are i get the basic download upload but theres like two that i see randomly and i dont know what they mean please explain someone

My post here, might help:

http://forums.bitcomet.com/index.php?s=&am…post&p=8450