Learn · TED

Talk5 min

Why do women have periods?

TED-Ed · TED

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About

A handful of species on Earth share a seemingly mysterious trait: a menstrual cycle. We're one of the select few mammals on Earth that menstruate, and we also do it more than any other animal, even though it's a waste of nutrients, and can be a physical inconvenience. So where's the sense in this uncommon biological process? TED-Ed describes the history and evolution of menstruation. [Directed by TED-Ed, narrated by Susan Zimmerman].

The talk

  1. Why do women have periods? 5 min · TED's player

Credits and licence

Institution
TED
Department
TED-Ed
Speaker
TED-Ed
Year
2015
Level
For everyone
Language
English
Subjects
Biology, Medicine and health, History
Source
TED
Licence
CC BY-NC-ND 4.0, as TED states it. Non-commercial use only, and no changed versions. TED's terms
Attribution
TED Talks are licensed by TED under Creative Commons BY-NC-ND 4.0 International and are shown here in TED's own player, as TED's usage policy asks.
Who can watch
TED gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed