As most here will know in the valleys the air is made up of 21% oxygen and
at elevation there is still 21% oxygen, there's just less air at elevation so there
is less oxygen.
So when at elevation our heart rate and breathing increase as means of meeting the
brain's oxygen demand, thus more blood in the brain causes dilation of blood vessels
which leads to increased cranial pressure , leading to elevation symptoms.
Of course. then anything that helps improve oxygen delivery is going to help mitigate
elevation symptoms. Which is why the previously mentioned pharmacological substances
may help.
Which leads me to this point, I've never tried it personally but I've read that Ginko Biloba
which is a popular herbal product, aids in delivering oxygen to brain tissue. Think of it as
making the transportation of oxygen from blood to brain more efficient. The caveat is that
it needs to be taken at 100mg 2x daily for 5 day prior going to elevation.
As in all things, your mileage may vary.