• FelixQui
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A Happy One
Felix qui potuit rerum cognoscere causas
Permalink : http://blog.nationmultimedia.com/FelixQui
Thursday , December 27 , 2007
Water on the Brain: it's all in the mind
Posted by FelixQui , Reader : 397 , 13:21:05   | Category : Epistemology  
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True or False?

  1. People should drink at least eight glasses of water a day 
  2. We use only 10% of our brains 
  3. Reading in dim light ruins your eyesight 

They're all false or unproved. And tea and coffee are fine for hydration.

For details, and more medical myths, see "Medical myths" in the British Medical Journal, at: http://www.bmj.com/cgi/content/short/335/7633/1288 

What I found most interesting, apart from having two (out of seven) false beliefs corrected, was that even doctors regularly fall for some of these myths.


Read comment

comment 15
Lalida date : 28/12/2007 time : 14.58
http://blog.nationmultimedia.com/fairness

Yeah Ian, You should put one up your head it might make your brain to think in a right direction.
comment 14
FelixQui date : 28/12/2007 time : 14.41
http://blog.nationmultimedia.com/FelixQui

manpower,
i wasn't making an assumption in comment 2. It's what the medical research literature reports.
The British Medical Journal is a reliable peer reviewed source, as are the studies the report is based on.
If you've read the report I referenced, why did you think I was making an assumption? The false belief about diuretics is common, as is the false idea that we should drink 8 glasses of water a day, but being common does not make the beliefs true.
comment 13
Ian date : 28/12/2007 time : 14.26
http://blog.nationmultimedia.com/anterian36

I think yuri has the best answer and the best pun:-)
comment 12
manpower date : 28/12/2007 time : 11.16

Felix RE:comment 2.Are you qualified to make that assumption?
comment 11
Hermano_Lobo date : 27/12/2007 time : 19.30
http://blog.nationmultimedia.com/yurivelasquez

The best solution to 'Water on the Brain' is a tap on the head !
comment 10
Lalida date : 27/12/2007 time : 18.36
http://blog.nationmultimedia.com/fairness

I won't argue on that #3 but I was always told not to read anything under dimm lights even by the eye doctor which they say "It's bad for your eyes" and some I read in articles.
comment 9
Ian date : 27/12/2007 time : 18.36
http://blog.nationmultimedia.com/anterian36

Felix, it strains the muscles not the actual optics. However the muscles become weaker as you get older so become strained/fatigued quicker.
comment 8
FelixQui date : 27/12/2007 time : 18.14
http://blog.nationmultimedia.com/FelixQui

#3 was also one of the ones I got wrong. My own experience is that reading in dim light is a strain on my already poor eyes, but apparently that's just a temporary effect and is unlikely to cause any lasting ruination.
comment 7
Lalida date : 27/12/2007 time : 16.28
http://blog.nationmultimedia.com/fairness

1. I don't know, I drink coke, 2. I've heard once on UBC no comment, but I'm think I'm using more then 10% to deal with my old man's sharp tongue and some of them in here 3. I agree, definitely right.
comment 6
Ian date : 27/12/2007 time : 15.36
http://blog.nationmultimedia.com/anterian36

ITY, just remember that is you take sugar with your coffee and you drink a lot of coffee, you will be taking onboard too much refined sugar. Particularly as most Thai food, which you seem to enjoy, is already high in sugar.
comment 5
Ian_the_younger date : 27/12/2007 time : 15.17
http://blog.nationmultimedia.com/poomjai

Thanks Felix,

I can finally put to bed my long held guilt complex about the number of cups of coffee I drink each day! Believe me, that is a huge weight (of water) off my mind. Off to Starbucks now for my first cup of the day.
comment 4
Ian date : 27/12/2007 time : 14.16
http://blog.nationmultimedia.com/anterian36

Funnily enough the BBC website featured the same article a few days ago.
I once walked through my local town on stilts (fund raising), main wisecracks I got was, "is it windy up there mate?" and "good view up there?".
comment 3
FelixQui date : 27/12/2007 time : 13.44
http://blog.nationmultimedia.com/FelixQui

Another popular article in the current BMJ is "Sex, aggression, and humour: responses to unicycling", where the researcher reports an unusual confirmation in evolutionary psychology. It's at: http://www.bmj.com/cgi/content/full/335/7633/1320
comment 2
FelixQui date : 27/12/2007 time : 13.29
http://blog.nationmultimedia.com/FelixQui

manpower,
Yes, tea and coffee are diuretics, but if the body is in need of water, their diuretic effect results in less water being lost than is taken in, so they can both provide a nett gain. The believe that they must cause a nett water loss is false.
comment 1
manpower date : 27/12/2007 time : 13.24

Tea and coffee are diuretics.
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