I recall Aajonus Vonderplanitz talked of how ejaculation can be detoxing cuz a lot of heavy metals tend to go into your semen (I assume due to its chemical nature the way it's made in terms of liquidity etc. and also the organ systems involved in producing it)
there is something to it, cuz many times when I ejaculated in spite of more sleepiness in first hours, I also felt more "cleaner" and sort of relaxed as if inner burden of some sort got "relieved"
the main cause of the anti-ejaculation/sexuality rhetoric as spread by SR/nofap comes from metabolically sick men (even some women have post-orgasm symptoms but men usually more so) who get lingering glutamate, histamine and inflammation elevation even days after a single sexual stimulation
arousal/orgasm etc. will STIMULATE histamine/glutamate release so when one has their baseline of those neurochemicals higher and ejaculate on top of it they get the common symptoms that are talked of on semen retention/nofap communities like brain fog, excessive tiredness, stuffy nose,