Answer:
Sleep routine, he might have got used to it, just as you have got used to yours.
He probably needs 12 hours sleep to 'operate properly'
If a person did poorly on a mile run test, it might be their stamina or speed that is at inadequate level. If you had a low stamina, even if you ran fast, you would lose energy very quickly. On the other hand, if you had lots of stamina but lacked the ability to run quickly, you would have energy, but would not be able to run as fast as the others.
I hoped this helped!
The answer is Kinesiology
