Answer:
There is no risk-free level of exposure to secondhand smoke. Secondhand smoke causes numerous health problems in infants and children, including more frequent and severe asthma attacks, respiratory infections, ear infections, and sudden infant death syndrome (SIDS).
Answer:
Secondhand smoke causes cancer
Secondhand smoke is known to cause cancer. It has more than 7,000 chemicals, including at least 70 that can cause cancer.
SHS causes lung cancer, even in people who have never smoked. There’s also some evidence suggesting it might be linked in adults to cancers of the:
Larynx (voice box)
Nasopharynx (the part of the throat behind the nose)
Nasal sinuses
Breast
Exposure of mothers and babies to SHS is possibly linked to certain childhood cancers:
Lymphoma
Leukemia
Brain tumors
Secondhand smoke causes other diseases and death
Secondhand smoke can also be harmful in other ways. For instance, breathing secondhand smoke affects the heart and blood vessels, which increases the risk of having a heart attack. Exposure to secondhand smoke increases the risk of developing and dying from heart disease. It also increases the risk of having (and dying from) a stroke.
Explanation:
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