If you have good cardio respiratory endurance, then you'll be able to do rigorous physical activity for longer amounts of time, because like other muscles in your body, the more you stretch them the stronger they get and the longer they would last.
Hope that helps and makes sense :)
Maybe you push them away.
Answer:
Because it lowers the risk of you or someone else drinking or even trying it and getting addicted.
Answer:
You should get to know the situation better before you do anything.
Explanation:
The person might not know they’re being abused. You should talk more about the subject with him/her.