While you didn't provide any following sources, healthy sources of energy for humans are usually considered to be different types of fruits and vegetables, lean meats, wholewheat grains, nuts, seeds, and healthy oils. All these constitute a healthy human diet and are a healthy source of energy.
Pedometers, accelerometers, activity trackers, heart rate monitors, and smartphone applications
If you starve yourself in a week, like by not eating anything, you will die in 3 days. Your body cannot survive without any food or water in a week! If you are thinking of doing it, don't!! If you want to loose weight try doing a healthy diet and exercise!
I hope this helped :)
All of these do seem like possible injuries that could happen in sports the answer that makes the most sense to me is B since it seems like getting arthritis from sports injuries does not seem that common,
Answer:
Drug Synergism. An interaction between two or more drugs that causes the total effect of the drugs to be greater than the sum of the individual effects of each drug. A synergistic effect can be beneficial or harmful.
Explanation: