Americans are are no strangers to hay fever and other allergies. Yet Americans born outside of the US may have to deal with these conditions less than those born in the US.

Truth or dare is an age-old game that will never wear out in childhood and adolescence. Often, the game involves harmless fun. But some dares should never be taken.

Prevention of allergies in children is a murky science. Some parents may add prebiotic supplements to baby formula in the hopes that the prebiotics could reduce allergy risk.

Researchers already knew that milk allergy was common among American children. But until recently, they weren’t sure how it compared to other food allergies.

Children born outside of the United States have lower allergy rates than US-born children. But now researchers have found that foreign-born children's allergy risk changes the longer they live in the US.

Even before children show signs of allergies, their body may already be reacting to allergens in the air or their food. Now, researchers have found that race may play a role in children's sensitivity to developing allergies.

For people with environmental allergies, the air they breathe can trigger reactions – even during sleep. Hypoallergenic mattress and pillow covers work for some but not all.

Following a rising trend, almost a third of all births in the United States are through caesarian section, or C-section. In many cases, these C-sections are medically necessary.

Phthalates are substances used to make plastic more flexible. They are contained in a number of items from personal care products like shampoo to flooring, electrical cords and toys.

Some parents may look for ways to prevent their children from developing asthma and allergies. Many experts have recommended exclusive breastfeeding for several months before introducing other foods.