Menstruation Evolution

Menstruation Evolution

Historically, the evolutionary origins of menstruation have been based on two theories: the ability to eliminate infectious agents carried to the uterus with spermatozoa and the comparative conservation of energy with menstruation compared to its absence.

Why is the menstrual cycle 28 days evolution?

Charles Darwin thought that the 28-day human menstrual cycle was evidence that our ancestors lived on the seashore and needed to synchronise with the tides. The Moon’s phase certainly has an effect on the behaviour of many animals.

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