Avoid cigarette smoke
We often hear Passive Smokers will also be affected by adverse effects of smoking just by inhaling the smoke, here's the description

Researchers from the New York School of Medicine analyzed more than 1,500 young people aged 12 to 19 years who participated in nutrition research and nutrition nationwide.
Participants will undergo blood tests to measure levels of chemicals called cantinine, forming a fraction of the nicotine, but it also examined the function of hearing.