Why do chemical equations have to be balanced? *

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.

the hyperactive and edgy feeling that comes when there is too much sugar in the blood stream. the actual amount of food that is eaten in a single meal. food with a high glycemic index is digested slowly.

true.