Serotonin loss may contribute to cognitive decline in the early stages of Alzheimer's disease

Comparing PET scans of more than 90 adults with and without mild cognitive impairment (MCI), researchers say relatively lower levels of the so-called 'happiness' chemical, serotonin, in parts of the brain of those with MCI may play a role in memory problems including Alzheimer's disease.


http://dlvr.it/SzsCPx

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