For the past year, caffeine has had a strange effect on me. I drink soda or coffee -- and within minutes, I feel groggy, fuzzy headed, and almost kind of drunk. I get absolutely no stimulating effects. The more I drink, the more fuzzy-drunk I feel. Caffeine used to make me feel wonderful -- awake, cheerful, on-point. I've never drank an excessive amount (2 coffees a day, max). Can anyone explain what might be going on in my brain chemicals?
posted by the jam on Jun 24, 2009 - 18 answers

I just had an MRI and MRA in response to these issues, and the radiologist's report should be relayed to me in a day or two. I've already had one normal CT scan. I received a copy of all the images from this scan - should I look at them? [more inside]
posted by elektrotechnicus on May 29, 2009 - 10 answers

I want to get pictures of my brain. What kind of pictures and how? Or is this ridiculous? [more inside]
posted by dame on Feb 4, 2009 - 20 answers

I am approaching 40. How do I stop my brain turning to mush?
posted by MrMerlot on Dec 21, 2008 - 24 answers

Would it be feasible to have a small electrode permanently implanted in my brain? [more inside]
posted by waxboy on Oct 16, 2008 - 13 answers

I'm making a certain type of typo more and more frequently. Should I be worried? [more inside]
posted by grumblebee on Sep 22, 2008 - 36 answers

The thought or visuals of old people falling sends literal shivers down my spine. What's going on, psycho-bio-neuro-logically? What causes a physical reaction to an unpleasant idea? This seems deeply wired, is it "innate" in the brain?
posted by These Premises Are Alarmed on Jul 30, 2008 - 4 answers

Amateur neurologists, please read! What is going on in my head?? [more inside]
posted by missuswayne on Nov 17, 2007 - 19 answers

I become dull and emotionless for stretches of 3-5 hours at a time. I don't feel depressed, I just feel absolutely nothing. I can play my favorite, rock-out song and it feels the same as listening to CSPAN. I can kiss my girlfriend and I might as well be kissing my hand. It happens regularly, usually in the afternoon, but not every day. Sometimes coffee or food can snap me out of it, sometimes not. The difference between being in or out this "mode" is very distinct. When I'm not in the "mode", I experience a pretty full, normal range of emotions and I'm not what you'd call depressed at all. Have other people experienced this? Any ideas of what causes it or how I can beat it? I hate missing out on experiences while stuck in this zombie-land.
posted by anonymous on Dec 18, 2006 - 17 answers

What experiments have been carried out where animals perform better than us at particular cognitive tasks? [more inside]
posted by 0bvious on May 9, 2006 - 13 answers

How do you get a doctor's attention? [more inside]
posted by booksandlibretti on Nov 29, 2005 - 45 answers