Hey, forget it.
15 Kick the bike before going to bed, squat 100 times, and then stand upright 10 minutes. It should be better in a month. If you have time, walking fast, jogging or climbing stairs for more than 30 minutes every day is effective.
So Mina! Your figure is really good! Many people envy your figure! So I don't think it is necessary to stovepipe, but it is still possible to keep it ... in the above way.
The answer is that it will not produce harmful substances, but this is a normal phenomenon, just like burping after eating. Don't worry. This is the role of microorganisms in