Dr. Nadine Burke Harris

speaker

549 appearances 1 recordings 1 series first heard Apr 2026 last heard 27 Apr

Dr. Nadine Burke Harris’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 1 in all, peaking in Apr 2026 with 1.

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They didn't do a lot.

And then when those baby rats grew up, they did all these tests on them.

And what they found was that the rats that had a lot of buffering did better on cognitive tests, right?

They were more stress tolerant, so they were more able to explore.

They were more adventurous.

When they actually measured their biological stress response,

Their stress response shut itself off more normally after the stressor was gone.

And this was really important.

When those rats had their own babies, they were...

more likely to do lots of buffering, lots of licking and grooming, right?

And the ones who didn't receive a lot of buffering care, it was the opposite.

Like they were less stress tolerant.

Their stress response would stay on longer after a stressor.

So after the stressor's already gone, they're still fired up with the stress hormones, right?

And when they had their own babies, they were...

less likely to do the buffering care.

And what was wild about it was that these behaviors

They could actually, they were tied to markers on the epigenetic marker.

So markers, not changes to the genetic code, but markers on the DNA to tell the body like which parts of the genetic code get read.

Wow.

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