And who were you prior to all of the Stanford and all of the other things that you're doing?

I was the sister that, um, always was a picky eater, always a weird eater, because stuff just didn't feel right.

I had gut issues.

My hair was falling out.

I had a really cute boy sophomore year in high school say, "Oh, look, you're going bald." I'm like, "Oh, my gosh." So when we talk about hair loss, this is the thing that really gets to my gut and I'm so passionate about.

But I was having gut issues, heavy metal toxicity, PCOS.

Um, got lucky getting pregnant the first time around.

So from your perspective, what are some of these hidden causes of hair loss that often get overlooked?