Step-mommy got fed up with running to the bathroom all day, and finally asked her doctor about it. He said it depends on the person, how big they are, and she shouldn't be striving for the magical 8.
My husband works in a dialysis unit, and the doctor there even feels that too much liquid intake is hard on the kidneys, and advises using the density of one's urine as a guide.
Quackwatch links this study, to address the question (Heinz Valtin. “Drink at least eight glasses of water a day.” Really? Is there scientific evidence for “8 � 8”? Am J Physiol Regul Integr Comp Physiol 283: R993 – R1004, 2002. First published August 8, 2002). He couldn't even find the origin of this saying, nor good studies to back it up (though he's open to hearing further proof.) He also challenges the idea that you can't include other kinds of beverages in your daily fluid intake; that when you're thirsty you're already dehydrated; and that you can judge by the colour of your urine.
' Thus I have found no scientific proof that we must
“drink at least eight glasses of water a day,” nor proof,
it must be admitted, that drinking less does absolutely
no harm. However, the published data available to
date strongly suggest that, with the exception of some
diseases and special circumstances, such as strenuous
physical activity, long airplane flights, and climate, we
probably are currently drinking enough and possibly
even more than enough. '
As for what kind of water to drink (filters and ionized or canonized or whatever) this is a site that explores these issues.
No comments:
Post a Comment