It could be muscular endurance, agility, or coordination. But I'm thinking muscular endurance.
Use regular reminders of personal motivations like family, career, and health.
Or
Keep his schedule and friends as consistent as possible to avoid too many changes
I was once a drug addict, and both of these things helped. Keeping a tight schedule and sticking to it really helps, especially in the beginning. And Using regular reminders of what you will lose/ and what you want for your future are both ways that really helped me.
Aerobic exercises get your heart rate higher and in turn cause it to work more efficiently while you are resting. Exercises such as running, cycling, swimming are great examples.
True, It Helps Protect The Workers From Getting Germs Onto Them And Then Onto The Patient (Which Is Why Healthcare Workers Wear New Equipment, Scrubs Etc.)
The answer is A) Positive Stress