"Simply seeing pictures of tempting food can light up the pleasure-seeking areas of obese peoples' brains." It's important not to infer causation from correlat

"Simply seeing pictures of tempting food can light up the pleasure-seeking areas of obese peoples' brains." It's important not to infer causation from correlation. We can't assume that obese people can't stop eating because of this kind of reaction in the brain. I'm sure if you showed a pothead weed, an alcoholic gin, or a cokehead coke then you'd see parts of their brain light up, because that is how their habits have been built, but this activity could be the result of long term bad habits as much as the cause of such habits.