Protein is broken down for energy when carbohydrates are scarce
It can offer protection to the brain, it can collapse under stress, and it can provide attachment sites for teeth.
Answer:
It should be subjective data.
The treadmill has a bunch of parts & pieces, and one of the most popular 'home fitness' exercise machine that requires the most maintenance. Maintenance of a treadmill would include: cleaning the motor cover, testing the stop/start button, checking lubrication, testing the tension belt, and tightening all the loose parts.