There are certain things we all think we know about living a healthy life.

A lot of these truths are pretty straightforward.

Wear a seatbelt, get enough rest, eat some vegetables.

But have you ever heard that hormone replacement therapy can cause breast cancer?

Have you been told to avoid high fat or high cholesterol foods?

What about that once golden rule for new parents?

Don't let a baby eat peanut butter.

If these sound familiar, it's because they were once preached as law by the medical establishment.

But new research has

turned all this guidance upside down and inside out. From KERA in Dallas, this is Think. I'm

Courtney Collins, in for Chris Boyd. Dr. Professor and Public Health researcher Marty McCarrie's

new book takes us on a journey through old protocols, new protocols, and the decades it often takes

to set things right. It's called blind spots, when medicine gets it wrong and what it means for

our health. Marty, welcome to think.

Great to be with it, Courtney. So this book is really a fascinating read. I'm wondering why

you set out to write it. What inspired you in the first place?

Well, medical dogma can take on a life of its own.

And we have group think sometimes in medicine with a small group of establishment leaders that sometimes set edicts for everybody.

And when they use good science, we help a lot of people as doctors.

But when they sort of shoot from the hip and go with their opinion, they have a terrible track record, saying opioids are not addictive for 30 years.

Kids should avoid peanuts, hormone therapy.

There are so many things where the recommendations have either been reversed and you haven't heard that they've been reversed because the establishment kind of quietly fades out or new research should be reversing some recommendations that are still prominent to the state.

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