They do not measure anything in my experience.

They just take an educated guess at what will fix your issues based on heuristics, and then just wait to see if you love/hate whatever they gave you. If what they give you did not work, then on to the next option until something works or all options are exhausted (which they usually just send you off to a different professional).

As I grow older, I am more convinced that psychiatry is more of an art than a science.

Tangential: I used to listen to Huberman, but over time I started to dislike his podcast more and more. I think he is a phenominal researcher, and I think his intentions with his podcast are good, but it seems like he just reads off various cherry-picked studies without actually linking them (that I could find) and without any mention of important details in the studies e.g. sample sizes, methodology flaws, implicit/explicit biases, etc..

He claimed 14% of pregnant mothers use cannabis in the US, but from what I have read of others' ventures into this claim, no one can find any information to support this claim.

I also remember his episode on ADHD, and how effective fish oil can be for treating some of the symptoms in ADHD. However, in my own reading of various research articles, I have found that there is quite a lot conflicting information pertaining to the purported benefits of fish oil (in regards to ADHD). But of course, he did not mention anything about the research that did not fit the supplement narrative... But don't forget to use the code "HubermanLabs" for a discount on your purchase of Athletic Greens though.