It is in the podcast "Kant ut" that Tiril Eckhoff discusses menstruation and training with national teammate Ingrid Landmark Tandrevold.

- This year I have chosen to periodize my training more according to my menstrual cycle.

I have noticed, which is completely individual, that there are certain periods when you are much more alert than during the week before menstruation, she says.

Eckhoff, who finished second in the overall World Cup last season, gives an example of how accruals go in practice.

- When you ovulate, you have quite high estrogen and progesterone.

Then you build muscle easier and then you are often very alert and in a good mood.

Then it pays to train hard.

CLIP: The Swedish biathlon stars will map their period

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Mona Brorsson.

Photo: Bildbyrån