Answer:
Used or second-hand items may be damaged, making them less effective and putting you at a higher risk for injury.
Explanation:
A. Distractions, because it is distracting him from running.
The stress? Bad eating habits due to lack of money and time? There could be lots of reasons but that's what came to mind first.
People who seemingly can eat whatever they want without gaining weight
usually:
c) have low resting metabolic rates.
