Does deja vu really exist? Or is it illusions?

Really good question, though I may be exploding your myth here... Deja Vu is indeed French for 'already seen'. The explanation I have heard is that it is basically a slowing down of the signals in the synapses of your brain which causes the memory to 'see' something a split second before the brain comprehends it. This typically happens when you are really tired. So you comprehend a yellow bus, but your memory has already registered the yellow bus, so it flags up a recognition... 'I've seen that before' says your memory... Whereas normally you would comprehend the yellow bus and THEN log it as memory. On the few times this has happened to me, I know how real it can feel, but try as I might, I can never PREDICT what is going to happen - I just 'recognise' what has already happened - If you analyse the same situations for yourself you will find that this accounts for pretty much all standard Deja vu experiences. I'm not ruling out visions and dreams as real experiences people have, but when it comes to Deja Vu experiences, I found this explanation to be true...

Yeah this happenes to me all the time. Since I was six years old. I went with my parents to a mans house. My parents both said we had never been there, I swore that we had been there before. I am not sure if I had had dreamed it or what. I still do this same thing from time to time. I guess it is deja vu. I think it is real.

its really happend on me , and all of it seem real. i also sometime if i want something and im thingking of ii, sudenly its become reality. maybe i have six sense..

I have driven in cities where I knew how to get where I needed to go - but I had never been there before. I have met people that I felt I knew them for a lifetime - but we just met. I think Deja Vu really exists - and it is past memories - from previous lives. This really diverts from my Catholic upbringing - but I read someplace that almost 40 percent of all Catholics believe in reincarnation.

I don't know the art or sciencetific explaination behind it,but I do know it happen sometime. For me though it happen when I am too exited about something that I know it might happen good example of this will be my wedding day. I think the reason people experiencing Dejavu is because they are just too curious of what might hapen and think about it too much and of course it hapen eventually....xxx

these things happen with me too. i feel like i had heard things earlier than they were said. i meet people who claim i have never met before but deep inside i know that i have met them. its hard to explain but we have the power to see things in the future.