Identify patterns in your life. Once you've got a handle on what codependency actually looks like, take a step back and try to identify any recurring patterns in your current and past relationships.
Okay, this is an interesting one but mainly no, most activity's will so you don't push yourself but if you really wanted to you could go for however long you want as long as you are not doing harm to your body, depending if you are on a fitness program there will be limits.
Answer:
Here are ideas to keep in mind-----
Keep Your Neighborhood Clean. If you see trash on the ground, toss it in a trash can.
Recycle Cans, Bottles, and Paper. Save them at home and at school, and help your family recycle them.
Help Keep the Air Clean. Ride your bike or walk to school. ...
Save Paper. ...
Help Save Water.