users 'have abnormally low blood flow in every part of the brain - including Alzheimer's danger zones' Read more: http://www.dailymail.co.uk/health/article-3979220/Marijuana-users-abnormally-low-blood-flow-brain-including-Alzheimer-s-danger-zones.html#ixzz4RO5gtvtE Follow us: @MailOnline on Twitter | DailyMail on Facebook

Marijuana users 'have abnormally low blood flow in every part of the brain - including Alzheimer's danger zones' Researchers studied brain scans of 1,000 US marijuana users They found cannabis users all had low blood flow in the hippocampus The users also had significant restricted blood flow all over the brain Hippocampus is key for memories, and is a ground zero for Alzheimer's By MIA DE GRAAF FOR DAILYMAIL.COM PUBLISHED: 16:41 GMT, 28 November 2016 | UPDATED: 22:18 GMT, 28 November 2016 e-mail 8.9k shares 504 View comments Marijuana users have abnormally low blood flow in virtually every part of the brain, new scans reveal. Sophisticated imaging of 1,000 cannabis users' brains found all of them had widespread restrictions or build-ups of blood flow. Many had abnormal blood levels in areas affected by Alzheimer's disease, such as the hippocampus. The findings, published in the latest Journal of Alzheimer's Disease, are an ominous warning as the United States rapidly embraces recreational and medical marijuana legalization. It comes just weeks after the White House's surgeon general, Dr Vivek Gupta, warned legalization is moving faster than research. Health dangers? Sophisticated imaging of 1,000 cannabis users' brains found 1,000 marijuana users had widespread restrictions or build-ups of blood flow (file image) +1 Health dangers? Sophisticated imaging of 1,000 cannabis users' brains found 1,000 marijuana users had widespread restrictions or build-ups of blood flow (file image) The researchers at Amen Clinics analyzed data from a broad database including 26,268 patients across the US between 1995 and 2015. The patients - from California, Washington, Virginia, Georgia and New York - all had complex treatment-resistant issues, and all underwent single photon emission computed tomography (SPECT) - a sophisticated imaging study that evaluates blood flow and activity patterns while undergoing concentration tests. One thousand of the patients were marijuana users. Comparing those patients' brain scans with 100 healthy controls, the researchers saw a stark difference in blood flow levels. Every marijuana user had significantly lower blood flow in the right hippocampus compared to the controls. Marijuana use is thought to interfere with memory formation by inhibiting activity in this part of the brain. RELATED ARTICLES Read more: http://www.dailymail.co.uk/health/article-3979220/Marijuana-users-abnormally-low-blood-flow-brain-including-Alzheimer-s-danger-zones.html#ixzz4RO4su7UM Follow us: @MailOnline on Twitter | DailyMail on Facebook