Simple carbohydrates are your main source of your energy in your diet and if you don't have it in your body you will be weak and have little energy. Also you won't be able to run or walk and your heart, lungs, and vital organs will not function properly.
If u have to much simple carbohydrate in your body you will gain weight and you will run out of energy very quickly. So to be very active and healthy you must have a balance of simple carbohydrates in your diet.
I can draw from my study that simple carbohydrates are a important part of your diet and energy, and if you do not have it in your body it can lead to health problem and maybe death. So if you want to have a health happy life you need simple carbohydrates in your diet.