Curing Allergies

Synopsis
A half century ago, the number of people with allergies suddenly began to rise. Currently, one out of three people in developed countries has an allergy. Researchers now know that increasing the number of regulatory T cells can possibly cure allergies. Treatment methods are switching from avoiding eating and touching allergens, to actively ingesting them. This episode will take a look at the latest treatments and research, including a study on the Amish, who have surprisingly low rates of allergies.