What anesthesia does to the brain, according to a new study

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March 24, 2026 What anesthesia does to the brain, according to a new study By Veronique Greenwood Staff Writer, Health & Science Anesthesia drugs are safe and effective, but they still contain mysteries. How do they all produce unconsciousness, when they act on such different targets? A new paper looks for answers by examining brain activity under three separate drugs. READ MORE » If you have a minute, please take our quick survey to help us better understand who you are and which health topics interest you most. Take the Survey WHAT ELSE TO READ 9 Signs You're Not Getting Enough Protein Experts say even mild protein deficiencies can show up in subtle ways.   The 4 Words That Drive Your Doctor Up the Wall And what they wish you'd say instead.   What Happens to the Plastic in Single-Serve Coffee Pods? Your morning brew may contain microscopic debris.   If you were forwarded this and want to sign up to receive it daily, click here. Today's newsletter was written by Veronique Greenwood and edited by Angela Haupt.   Want more from TIME? Sign up for our other newsletters.         Subscribe to TIME TIME may receive compensation for some links to products and services in this email. Offers may be subject to change without notice. Connect with TIME via Facebook | X | Newsletters PRIVACY POLICY | YOUR CALIFORNIA PRIVACY RIGHTS Questions? Contact newsletters@time.com Update your email preferences or unsubscribe here © 2026 TIME USA, LLC. All rights reserved. TIME Customer Service, P.O. Box 37508 Boone, IA 50037-0508, United States Terms of Service