Prof. Charlotte Helfrich-Förster

I was walking from the train station to my home, family home.

Oh, fantastic, because you could see everything.

You don't need lights in the street.

So I always loved the moon to be our

My first day of menstruation was always around the full moon.

And then I was really astonished.

Oh, that's interesting.

My mother told me to make always a cross in my calendar at the first day of my menses.

So I did it without thinking.

But of course, as a scientist, you know that three examples are not enough.

And when I started to ask colleagues, friends, whether they by chance had kept any recordings of her menses,

That is very important.

The effect is really very small.

And to be honest, when you look at your entire cycle, it's only a small part during a cycle that is synchronous to the moon.

Yeah, right.

I was absolutely disappointed.

When I pulled all the data, the new data that I had, I didn't see any synchronization to the moon anymore.

So it was very different from my first study with the 22 women.