The type of foods you eat and the amount of exercise
Alcohol has no affect on metabolism; metabolism breaks alcohol down in the body.
it doesnt
Nope
It affects everything
No. Diarrhea does not have any effect on metabolism. Metabolism is usually determined by the amount of muscle mass you have.
Metformin
all the above
The term Diet is what usually draws people's attentions to diet sodas such as Diet Coke. However, you may want to consider that Diet Coke does affect your metabolism, and not in a good way. It can slow your body down and give you a feeling of sluggishness that will adversely affect what you are trying to do to increase your metabolism.
food, shelter, water, love Reptiles have no love (from parents anyway) and I would say theyre doing JUUSTTT fine surviving XD But if you mean love like breeding then you would be correct :)
Size does effect metabolism rates. The smaller the animal the less energy its metabolism expends. Bigger animals must have a more active metabolism to regulate themselves, and it correlates with expected lifespans.
Carbohydrates affect metabolism in the following way. When eaten in a sensible portion, they aim to break down to only give energy. When eaten excessively, they can give excess fat.
With emotional states, the body would either increase metabolism for energy or decrease metabolism.