if I give you brainlest on this questions I will go to ur account and make sure to answer one of your questions and you have to give me brainlest comment if you will do that with m plz and t

Olfactory epithelium i believe

One health risk and the most important one is obesity, it can cause obesity since you are not leveling your food like you wont ever get full because your just snacking between foods which can also cause diabetes.hope this : )

Heat exhaustion is the right answer