They say timing is everything, and that's definitely the case when it comes to childhood vaccines. They're most effective when they're given at the right time — and lots of careful consideration goes into deciding when exactly that is. Trusted SourceAmerican Academy of PediatricsImmunizationsSee All Sources [1]| What to Expect
Breathing is so automatic that most of us don't even think about it — unless you notice your child struggling for air. Whether it's wheezing, allergies or a persistent cough, these and other symptoms could point to a case of asthma, which often starts before age 5. Trusted SourceNational Institutes of HealthAsthma in ChildrenSee All Sources [1] In fact, 1 in 12 children in the U.S. (or about six million) have this disease. Trusted SourceCenters for Disease Control and PreventionAsthma in ...| What to Expect