I couldn't find that much but I found the same question as yours and this is another person comment. :3 hopefully that help :D
A diet that can lower your stress looks like something with a lot of fruits and vegis. Making sure you get a least one hour of exercise a day. Plus drinking tons of water and a some juices. Foods I'd consider would be pineapples, strawberries, bananas, cucumbers, carrots, and etc.
Decrease the intenseness of the stepper machine so his heart rate doesn't go over his target heart rate zone.
Are there answers from what I can pick from..?
Answer:
underestimate the distance needed to stop
