Why are more children getting asthma?

Why are more children getting asthma?

No one really knows why more and more children are developing asthma. Suggestions include the following:

• Children are being exposed to more and more allergens such as dust, air pollution and second-hand (and even third-hand) smoke.
• Children aren't exposed to enough childhood illnesses to build up their immune systems.
• Lower rates of breastfeeding have prevented important substances of the immune system from being passed on to babies.