Can Weed Really Shrink Your Brain?

A few weeks ago, I talked on this podcast episode about whether THC can cause damage to the grey matter in your brain. But, frankly, I spent very little time addressing the matter on that particular show, so in today's episode, I'm revisiting the topic of THC, brain damage, liver damage, myths about marijuana, CBD, smart drugs, nootropics and more with Dr. Andrew Hill, Lead Neuroscientist at truBrain, and one smart cookie. During our discussion, you'll discover: -Why left-handed people are more sensitive to chemical stimulants... -The truth behind the evidence that THC can shrink the brain... -The important differences between THC and CBD... -How Dr. Hill can "reset" tolerance to marijuana using neurofeedback in his clinic... -If there is a deleterious effect of THC on the liver or other organs... -How to map your brain and change your brain using neurofeedback... -Little known smart drug ingredients such as oxiracetam and centrophenoxine... -And much more, including a killer giveaway at the end of the show!   Resources & studies cited in this episode: Decreased grey matter but increased connectivity (not controlled for SES): http://www.ncbi.nlm.nih.gov/pubmed/25385625   More recent and much larger study that failed to find grey matter volume changes: http://archpsyc.jamanetwork.com/article.aspx?articleid=2429550#Abstract   And a summary of another study that found decreased volume, and the two studies that refute this: https://www.psychologytoday.com/blog/your-brain-food/201501/daily-marijuana-will-not-shrink-your-brain -Alternatives Brain Institute -Pocket Neurobics -Heart Rate Variability (HRV) Training -TruBrain drinks and capsules (use code BEN to save 50%) -Previous episode with Dr. Andrew Hill on smart drugs vs. nootropics -Water soluble CBD Do you have questions, comments or feedback for myself or Dr. Andrew Hill? Leave your thoughts at BenGreenfield.com and one of us will reply.See omnystudio.com/listener for privacy information.