In a review of over 50 studies, researchers found that oldest kids (in a family) are more likely to suffer from allergies, hay fever, eczema, asthma and food allergies.

The reason might be that first borns are overprotected, with many not exposed to bacteria or viruses or different foods until they start school. Younger siblings battle the bugs older siblings bring home. They therefore may develop stronger immune systems earlier on in life.

So .. Parents ... Stop shielding your kids from he environment ..
It may save then from difficult allergies later on in life ..