Cardiovascular endurance, muscular strength, muscular endurance, and flexibility.
Answer:
From what I found, it mostly causes tooth discoloration, but no real tooth decay / rotting / etc.
If you are worried though I suggest contacting your doctor and dentist! That is the best route to go, since medications affect everyone different!
Explanation:
I would say "B", because kids trying to fit in at a new school will often try things just to be excepted and make friends.
Explanation: Place any and ALL sharp objects somewhere that you can't get to when sleeping. Maybe install a motion sensor outside of you room to switch on at night. Then when it senses motion then it will go off like an alarm. This may be unfortunate though if another household member needs to pass by.