Allergies, so they don't ingest something they are allergic to.
Put her hands in the correct position or slightly arch her back
Answer:
Covering mouth while sneezing
Explanation:
It prevents germs going airborne and spreading to another person or surface.
The other answers are ways to get better from an illness or are just inefficient
Well because the human body was designed to be symmetrical, If this were to happen the child would live until the body compensates, with an uneven gait. This uneven gait can affect the curvature of the spine if it goes on long enough causing exaggerated curvatures, called Scoliosis.
Here is an interesting fact though, a fracture through the epiphyseal plate of developing children when broken can actually stop growth of the bone causing almost the exact same thing.
You only know the limits that you can push yourself to which affects what standards you will exercise to . which determines your personal saftey