Sorry babe i don't get your question if your question is "how does the body use food" then your answer is this (when you eat, your body breaks down all of the starches, sugars, fats, etc. from food that you eat, and uses that from the food you just ate for ENERGY so you can stay alive) so long story short your body uses food for ENERGY....but if that wasn't your question then i'm sorry i don't know
Older generations had more accurate health information, and people were more active.
Answer:
The energy you channel to get into a mindset will affect the way you assess the particular task you delegate for yourself, fitness-related ones especially. The more positive you are, the more energy and adrenaline you'll have, whereas if you're grudgingly getting into fitness, there's more of a possibility of putting it aside and eventually just not doing it.
They have an effect because the bigger the school the more activities you can do because you have more people.
Cardio" refers to the heart and "vascular" refers to the blood vessels .