Our SPECT work, now over 70,000 scans, has taught us so many important life lessons about the brain, such as: Brain injuries can ruin people’s lives; Alcohol is not a health food and often shows significant damage on SPECT scans; A number of the medications people routinely take, such as some common anti-anxiety medications, are not good for the brain; and Diseases like Alzheimer’s actually start in the brain decades before people have any symptoms.