Meryl Horne

He starts with a group of Topocone people who are living in a more urban area.

Okay.

And weirdly, he found that their sleep was still affected by the moon.

Hmm.

So now Orecio is like, OK, let's run the experiment again where he lives in the U.S., in Seattle, in Washington state.

He gets sleep data from about 120 people there, mostly young adults.

And...

He still sees the same pattern.

So these people living in Seattle were also sleeping less on the nights leading up to a full moon by like 20 to 40 minutes.

Well, yeah, because this is Seattle.

Like it's cloudy most of the time in the winter there.

And Horacio is still seeing this pattern even in the winter.

And then the moonlight is also competing with other forms of light in a city.

Like apparently the moon, even when it's full, is still something like 50 times less bright than a single streetlight.

I guess so.

Well, you know, sitting out in the park, watching the full moon.

I don't think so.

Because when you look at the data, it's not like people were like suddenly sleeping less just on the night where there is a full moon.

What you actually see is this pattern where you kind of like sleep less and less gradually in the days leading up to the full moon.

And then it kind of peaks.