One negative effect is doing drugs because it is bad for health and many people die from lung cancer on top of that. some kids may do it because of peer pressure and just to fit it. another negative example is abusive realationship if someone is dating another you should watch out for them being abusive. they might convince the other to do things they don't want to. an effect is if its a girl she can end up being a pregnant teen and the father may not want to be involved leaving the girl all alone
I think A, When you fast your body does not register that you have eaten that much, so when you eat faster you eat more. But when you eat slow your body registers that you have eaten that much making you eat less.
B) Tart and tangy, Each food has an opposite taste that goes well with it. For example fun dip, the candy stick is pure sugar (which is sweet) and the dip is sour.