As far back as 400 B.C. Hippocrates observed that asthma tends to run in families. Starting in the 1990s scientists started discovering various genes that were proven to predispose a carrier to developing diseases such as asthma, allergies and eczema. So it took nearly 2,400 years for Hippocrates to be proven right.
According to Lawrence Berkely National Laboratory (lbl.gov), "Asthma Linked Genes Discovered at Berkely Labs," two such genes called IL4 and IL13 were discovered on...


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