While I still think all of the above is more-or-less true, I’ve since learned it’s not the real reason.
The real reason is that we don’t (yet) have a way to noninvasively measure blood hormone levels as they fluctuate throughout the day. You’d have to keep your study subjects hooked up to an IV, or taking many blood tests a day, continuously for at least a month (because of the menstrual cycle). This is unpleasant and maybe unacceptably risky (infections!) What we need is noninvasive continuous hormone monitoring, which is currently at the prototype stage in a couple of university labs.
Finding somebody who can do the math will be easy once the data exists.
While I still think all of the above is more-or-less true, I’ve since learned it’s not the real reason.
The real reason is that we don’t (yet) have a way to noninvasively measure blood hormone levels as they fluctuate throughout the day. You’d have to keep your study subjects hooked up to an IV, or taking many blood tests a day, continuously for at least a month (because of the menstrual cycle). This is unpleasant and maybe unacceptably risky (infections!) What we need is noninvasive continuous hormone monitoring, which is currently at the prototype stage in a couple of university labs.
Finding somebody who can do the math will be easy once the data exists.