Answer:
all of the above I would think.
Your mental feelings, they could affect your want to have physical activity. and your eating habits. if you make yourself sick when you eat, you might feel exhausted, meaning you would lack in physical activity.
Answer:
I would buy a beginners soccer ball. Especially playing with friends. I would get a normal soccer ball that would be made of synthetic leather. Then, the more I play, I would get a more professional soccer ball.
Explanation: