When a Light Bulb Went On for Doug Axe

Dr. Axe's new book, Undeniable: How Biology Confirms Our Intuition That Life Is Designed, will turn on a light bulb for many readers. When, though, was his own "Aha!" moment?

He describes it above. It came early on in his Caltech graduate studies:

I suddenly saw this connection between what I had studied as an engineer and biology -- specifically, how things are controlled at the molecular level in gene expression. I saw this elegant regulatory mechanism described in a lecture and I thought...