Particulate Matter or PM should be your answer.
Both are equally likely to become infected. But it depends on how far the nail is in the foot and how bad the cut is on the finger.
Waking up earlier by just a half an hour to an hour so he can get in a light run, squats, etc. or instead of playing video games, on his phone, or computer, he can instead exercise. Also, he could even make a game to exercise. Every time there is a commercial on tv, he could squat until the show comes on. Does that help?
