The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
So yes, if your dopamine and serotonin, or o- or I should say, if your dopamine and/or serotonin levels are too low, it will be very hard to achieve pleasure, to experience physical pleasure or emotional pleasure of any kind.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
So, if levels of serotonin and dopamine are too low, it becomes almost impossible to experience pleasure. There's a so-called anhedonia.