In the Respiratory system there are many things that you should know about to keep your
system healthy.

1. The respiratory system is up where your chest is.

2. NEVER SMOKE!

3. When you have asthma your system is not filtering well, and when you have asthma your bronchi tubes narrow and almost closed, and that why it's hard for you to breath.

On number two here is one thing for your advice you can die because when you have all that smoke, in your body you can't breath properly the way your system works is off track. Also you see on number Three when you have asthma, you should have an inhaler, because when you run your respiratory system is clogged or something else that is special about you that is in your system, but I've played on a soccer team and one girl had asthma and a couple times she had to sit out when we had punishments ( when people where not paying attention to Mark.) he would make us run laps. so to get this clear if there was no respiratory system you wouldn't be here so ALWAYS keep your body healthy.