Quite a bit from handedness onward appears to be determined by duration in utero. With negative effects possible for both too short and too long.
But I suspect that’s due to genetic variation given normalcy of some early and late births.
Source date (UTC): 2023-01-27 17:00:57 UTC
Original post: https://twitter.com/i/web/status/1619017628122763264
Reply addressees: @VinnytheCrow
Replying to: https://twitter.com/i/web/status/1619016780726534146
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