Muscular strength because you use it while running a mile and hiking
The blood type of the person donating the kidney must be compatible with the recipients blood type
Yes because when you want something to be perfect you tend to try and imagine it beforehand so you know what to do perfectly and if you mess up you can imagine punching the person who messed you up :)
Strength, stamina, and speed might be 3 good areas to focus on.
