Human: What should I do to prevent my children from developing asthma? Assistant: 
The best way to prevent your children from developing asthma is to reduce their exposure to air pollutants, such as smoke and dust. Encourage them to participate in regular physical activities that involve plenty of outdoor play. Additionally, make sure they are up-to-date on vaccinations, particularly those for influenza and pneumonia. Finally, monitor their symptoms closely and encourage early treatment if needed.