One of the interesting things about being a scientist is reading how science is interpreted in the mainstream media, and then comparing the headlines back to the science that was, you know, actually done. When I was a young, and highly naive little scientist, I would read the headlines and go "oh, wow, they found that brain structure and hormone use are correlated in women and makes them behave differently. They must have done all of that stuff in the study".
HAHAHAHAHAHAHAAHA. No, no they didn't. At first I was often surprised to find that the media would put all the hypotheses and suggestions in the discussion of the article in as fact, and it turns out that the people doing the study wouldn't have done ANY of those bits AT ALL.
Now, I am not as young (sniff), and I am slightly less naive. So when I saw headlines like "Salt Appetite Is Linked to Drug Addiction, Research Finds", "Cocaine Addiction Uses Same Brain Paths as Salt Cravings", "Appetite for salt linked to drug addiction", I know that you can't ASSUME that they tested the actual drug addiction propensities implies in the studies.
So when you see headlines like this...don't put down the Fritos. Put down the Fritos because those things are gross and probably terrible for you, sure (have you SEEN the fat content on those things?!), but not because they make you a crack junkie.
Liedtke, et al. "Relation of addiction genes to hypothalamic gene changes subserving genesis and gratiﬁcation of a classic instinct, sodium appetite" PNAS, 2011.
This does not mean this is a bad paper. On the contrary, it's a fine paper. But it does mean, yet again, that you shouldn't believe everything you read.
For starters: "salt appetite" doesn't just mean that you prefer butter style popcorn to kettle corn.
(And finally a small rant. ", research finds"? ", research finds"?!?! Who the heck thinks that's good sentence structure or in anyway improves the headline?!!? I see this all the time and it always makes me cringe a little. Argh)
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