3 ms·
> Women only become fertile at age 15 More like 12-13, but you are right. I did not consider that.
by Hendrikto 3y ago
> Women only become fertile at age 15
More like 12-13, but you are right. I did not consider that.
- dragonwriter 3y agomenarche tends to average around 12 (with a wide range), but most cycles don’t involve actual ovulation for the first few years after menarche, so fertility and menarche aren’t simultaneous.
- Ancapistani 3y agoIt's interesting to me that the average age at menarche has been declining in recent years - and that we don't really know what that's the case. For example: https://www.cdc.gov/nchs/data/nhsr/nhsr146-508.pdf https://www.cdc.gov/nchs/data/nhsr/nhsr146-508.pdf Now I'm wondering if there has been any change in the age of the onset of menopause, and whether that's been studied...
- thriftwy 3y agoThese who are able to have healthy offspring late in their lives are at tremendous evolutionary advantage now, whereas historically it was a selectionary 'meh'.
- Qem 3y agoI wonder if that leads society to unwittingly be selecting for longer lifespan, if maximum lifespan and maximum reproductive age are correlated.
- thriftwy 3y agoLifespan is almost worthless if you are not in tolerable mental and physical condition, and prolonged fertility likely correlates with both. You need to be fit to be fertile.