Answer:
Your body needs calories for energy. But eating too many calories — and not burning enough of them off through activity — can lead to weight gain. Most foods and drinks contain calories.
Slow muscles are more important for cardiorespiratory fitness because they efficiently use oxygen.
If she has a friend available, I would recommend the friend finding the end of her finger and preserving it and taking it to the hospital with her just in case it can be reattached. Also, elevating the extremity above the level of the heart can help with blood loss. If the bleeding is so extreme that pressure and elevation are not helping, a tourniquet may be a necessary step. Of course, call EMS for additional help.
I have no idea what this has to do with health but it’s true