Opening a steaming bag of popcorn, the thick buttery flavor always makes people salivate. But it's not the smell of the corn itself, but the smell emanating from high concentrations of a chemical food additive, diacetyl ketone. Experts warn that more exposure to this odor, it is easy to develop occlusive bronchitis, also known as "popcorn lung". This can make it difficult to breathe and cough; in severe cases, it can lead to fibrosis of the lung tissue.

Experts say that people now eat popcorn,

Contains some chemical food additives like diacetyl ketone, in the microwave heating process, will generate a series of substances harmful to human health. When people inhale or consume them, they can cause damage to their lungs.

Experts suggest that it's best to eat less of these foods, or to dissipate the smell when you open a bag of popcorn until you can barely smell the buttery flavor before eating it