Health, so you do believe that if a woman is physically washed out but mentally alert, she should or could learn?
As a side note, I don’t recall a Halacha dictating which voluntary Mitzva that is not before you, you must do, other than the preferances in Tzadaka. Do you have an example in mind?
With your argument, you are negating any woman. But there were famous Melumados that we know, and probably a lot more that we don’t know of.