Triggers don't cause asthma (no one knows exactly what does) but they can make your asthma worse or cause an attack. Knowing as much as you can about your triggers is important, so that you can do something about them
Triggers are different for everyone. Some triggers are:
See how good you are at staying away from the triggers in my Jumping Fish Game
If you want some help figuring out what your triggers are, ask an adult, your doctor or the asthma nurse. Find out more about your triggers here.
Remember to watch out for your triggers when your asthma is worse because you will react to them more during this time.
As you probably already guessed, the idea is that you control the triggers in your house and around you. This is especially important in rooms where you spend a lot of time, like your bedroom.