It isn't that women are stupider.
Having spent 20 years in hospitals. Women make very good doctors, however they do not work the same hours.
Women tend to work part time because they have kids.
They tend not to work as many years, retiring at a younger age.
They also tend to go into the less intense areas of medicine.
There are lots of female pediatricians, female obstetricians, internal medicine , family practice and lots of female psychiatrists.
Female surgeons are rare, female cardiologists are rare, female neurosurgeons and orthopedic mds are almost unheard of.
They also tend to avoid specializing in trauma.
Men generally want to go for the gusto. They are more aggressive and really like trauma and surgery. Surgery on anything. Blood flying in an er is a challenge.
Being naturally gadget happy they like the special proceedures with threading a catheter up a femoral artery into the heart or the head and watching it on a monitor.
They like sawing and hacking out fractured femurs and nailing new joints into place.
It's just the differences inherent in the sexes. It's not that women lack the smarts or the ability. If you don't like to take apart, hammer and fix things at home, why would you want to make yourself miserable by doing it at work.
I could, but I would not become a surgeon. I made a pledge to be a stay at home mother should I ever have children. Being a surgeon takes a lot of time and arrogance that I do not have.