Secondhand smoke causes or exacerbates a wide range of adverse health effects, including cancer, respiratory infections, and asthma.
Secondhand smoke causes lung cancer and other health problems.
The EPA estimates that secondhand smoke causes approximately 3,000 lung cancer deaths and 37,000 heart disease deaths in nonsmokers each year. Secondhand smoke is especially harmful to young children. EPA estimates that secondhand smoke is responsible for between 150,000 and 300,000 lower respiratory tract infections in infants and children under 18 months of age annually, resulting in between 7,500 and 15,000 hospitalizations each year. Secondhand smoke is harmful to children with asthma. The EPA estimates that for between 200,000 and one million asthmatic children, exposure to secondhand smoke worsens their condition.