What if We Prevented Allergies?

It's hard to isolate any one of these variables because, you know, when we talk about allergies, they do affect individuals. Your DNA, extended end-to-end from all of your hundred trillion cells would go to the sun and back 666.5 times. For many genes, there are tests where you can actually say, oh, this is the dose you should take. It opens the door for prescribing medications differently at different doses for each individual.