Yes it does the chemicals in whatever you are smoking are more than likely altered from what it originally was, therefore the chemicals start to taint the blood vessels and damage them permanently.
Lol funny question.
But to answer it, yes in order to stop a piece of paper from folding or creasing you put it in a folder, or maybe a binder. You can even lay this piece of paper on a table that won’t be touched/untouched. So therefore it will stay flat and not have any creases or bends or folds. Also a folder keeps the paper clean from getting messy
The items of food handling that is most likely to be vulnerable of hazards is the critical control point. The critical control point is a procedure being applied to be able to prevent hazard to be contaminated to the food and in the same time to promote food safety. One of the methods that falls under critical control point is cooking, it is used to kill microorganisms that could be lurking on the food. The reason why it could be vulnerable of hazards because if it not done correctly, it could still preserve the contaminants, making it dangerous and making the people consume it at risk. Just like in cooking, when it is not done correctly, it will preserve the microorganisms, making the people consume it at risk.