Como agua para el clima

MALMÖ – "Todo el mundo sabe" que es bueno beber ocho vasos de agua al día. Después de todo, es lo que aconsejan muchísimos articulistas sobre la salud, por no mencionar al Servicio de Salud Nacional británico. Vivir sano hoy es sinónimo de siempre tener a mano una botella de agua y beber de ella con regularidad para intentar alcanzar la cantidad diaria que nos mantenga hidratados y saludables.

De hecho, solemos beber sin tener sed, pero así es como debe ser: como nos recuerda la marca de bebidas Gatorade, "puede que nuestro cerebro sepa mucho, pero no sabe cuándo nuestro cuerpo necesita agua". Claro, puede que no nos resulte cómodo beber tanto, pero Powerade nos da este sabio consejo: "uno puede hacer que el estómago se adapte a tolerar más fluidos si aumenta su consumo de manera gradual".

Ahora la revista British Medical Journalinforma que estas afirmaciones "no solo no tienen ningún sentido, sino además son un absurdo desacreditado". La comunidad médica lo ha sabido desde al menos 2002, cuando Heinz Valtin, profesor de fisiología y neurobiología de la Escuela de Medicina de Dartmouth, publicó la primera evaluación crítica sobre la evidencia de beber agua en abundancia. Concluyó que "no solo no existen evidencias científicas de que necesitemos beber tanta, sino que además la recomendación podría ser dañina, tanto por su potencial de precipitar una peligrosa hiponatremia (o intoxicación por agua) y exponernos a contaminantes, como por  hacer que muchos sientan culpa por no hidratarse lo suficiente."

To continue reading, please log in or enter your email address.

Registration is quick and easy and requires only your email address. If you already have an account with us, please log in. Or subscribe now for unlimited access.

required

Log in

http://prosyn.org/vmKfXpo/es;
  1. Patrick Kovarik/Getty Images

    The Summit of Climate Hopes

    Presidents, prime ministers, and policymakers gather in Paris today for the One Planet Summit. But with no senior US representative attending, is the 2015 Paris climate agreement still viable?

  2. Trump greets his supporters The Washington Post/Getty Images

    Populist Plutocracy and the Future of America

    • In the first year of his presidency, Donald Trump has consistently sold out the blue-collar, socially conservative whites who brought him to power, while pursuing policies to enrich his fellow plutocrats. 

    • Sooner or later, Trump's core supporters will wake up to this fact, so it is worth asking how far he might go to keep them on his side.
  3. Agents are bidding on at the auction of Leonardo da Vinci's 'Salvator Mundi' Eduardo Munoz Alvarez/Getty Images

    The Man Who Didn’t Save the World

    A Saudi prince has been revealed to be the buyer of Leonardo da Vinci's "Salvator Mundi," for which he spent $450.3 million. Had he given the money to the poor, as the subject of the painting instructed another rich man, he could have restored eyesight to nine million people, or enabled 13 million families to grow 50% more food.

  4.  An inside view of the 'AknRobotics' Anadolu Agency/Getty Images

    Two Myths About Automation

    While many people believe that technological progress and job destruction are accelerating dramatically, there is no evidence of either trend. In reality, total factor productivity, the best summary measure of the pace of technical change, has been stagnating since 2005 in the US and across the advanced-country world.

  5. A student shows a combo pictures of three dictators, Austrian born Hitler, Castro and Stalin with Viktor Orban Attila Kisbenedek/Getty Images

    The Hungarian Government’s Failed Campaign of Lies

    The Hungarian government has released the results of its "national consultation" on what it calls the "Soros Plan" to flood the country with Muslim migrants and refugees. But no such plan exists, only a taxpayer-funded propaganda campaign to help a corrupt administration deflect attention from its failure to fulfill Hungarians’ aspirations.

  6. Project Syndicate

    DEBATE: Should the Eurozone Impose Fiscal Union?

    French President Emmanuel Macron wants European leaders to appoint a eurozone finance minister as a way to ensure the single currency's long-term viability. But would it work, and, more fundamentally, is it necessary?

  7. The Year Ahead 2018

    The world’s leading thinkers and policymakers examine what’s come apart in the past year, and anticipate what will define the year ahead.

    Order now