Regardless of your own attitude toward the truth, your brain does not lie.
At least it CAN'T when it is scanned by medical imaging devices. And the brains of people who use marijuana show reduced blood flow, as reported in a recent study.
That's especially true in the hippocampus, the part of the brain involved in Alzheimer's disease.
Dr. Daniel Amen of Amen Clinics is the lead author of the study.
He discusses its implications for marijuana use and the advance of Alzheimer's.