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the 1 month brain looks healthier than the 14 month brain?

i see the red (dopamine) is better in the 14 but the rest of it looks worse than the 1...

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OK, what was not posted with the brain scans, was the explanation:

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Brain images of a person who has never used methamphetamine (top) and of a methamphetamine user after 1 month of abstinence (middle). Lighter colors show distribution of dopamine transporters (DAT) in the striatum. DAT distribution is reduced in striatum of methamphetamine user. Brain image of a methamphetamine user after 14 months' abstinence (bottom) shows substantial recovery of DAT in striatum. Low levels of DAT in methamphetamine users were associated with poorer performance on tests of memory and motor skills, which did not improve with DAT after lengthy abstinence.

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You can read the whole article that came from here:
www.nida.nih.gov/NIDA_Not...amine.html

You were noticing that there were more black areas in the 14 month picture than in the 1 month picture. However, this scan's sole purpose was to trace dopamine activity. This does not mean that the brain was healthier at 1 month abstinent than at 14 months.