October 25th, 2011 by Dr. Val Jones in Health Tips
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Perhaps you’ve heard that increasing your water intake is part of a healthy lifestyle – and that you should drink at least 8 glasses of a day. This “rule of thumb” is actually not based on scientific evidence. Although for many people it’s not harmful advice, you may not need to work so hard at getting enough water every day.
The amount of water that your body needs depends on three main variables (yes, needs can vary with different illnesses and conditions, but let’s talk about the average American):
1. Your body’s size
2. Your activity level
3. Your environment (weather and humidity conditions)
The larger you are, the more water you lose from sweat (be it from physical activity or hot weather conditions), the more water you need to replace. The amount you need can vary a lot – and in most cases there are two tricks you can use to stay properly hydrated: Read more »
September 30th, 2011 by ChristopherChangMD in Research
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Researchers at Johns Hopkins published a study that reports that MRI scans CAN cause feelings of dizziness induced by magnetic fields causing motion of the electrically charged fluid of the inner ear.
In both ears, there is a “gyroscope” called the labyrinth. Whenever the head turns or a force like gravity is exerted on this system, fluid moves within, which tells the brain that motion has occurred. It’s much like looking into a glass of water and based on the way the water tilts in the glass, you can guess which way motion is occurring.
In any case, the study Read more »
*This blog post was originally published at Fauquier ENT Blog*
August 24th, 2011 by Dr. Linda C. Degutis in Health Tips
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It may seem rather unusual to talk about injuries and weather in the same context, but extreme weather can pose significant risks for many kinds of injury. Currently, many parts of the United States are experiencing a major heat wave, with record-setting heat and heat indices over the next few weeks. As we have seen in the recent past, deaths are occurring from heat-related and possibly from participation in outside activities that increase the risk of heat-related illness.
During the month of August, many athletes train for the fall sports season, sometimes participating in two practices a day over the course of a few weeks. While training is necessary and important for athletes to build up their stamina and to improve their performance, health consequences can be deadly if Read more »
*This blog post was originally published at CDC Injury Center: Director's View Blog*
August 15th, 2011 by Sergio Minué, M.D. in Health Tips, Opinion
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“Bueno es saber que los vasos
nos sirven para beber;
lo malo es que no sabemos
para qué sirve la sed”.
Proverbios y cantares.XLI. Antonio Machado
(‘It’s good to know that glasses
are what can help us drink;
The trouble is, we don’t know
What is the purpose of thirst’)
The one thing you can’t afford to have missing when you start a scientific congress or any other professional meeting is not a notepad, a pencil or even an iPad – nowadays, it’s a bottle of water. Offices, airports, handbags and lecture halls, all of them are bursting with all kinds of bottles. It seems they are essential to work and even to stay alive.
Bordering nonsense, some people desperately search for a bottled water vending machine as soon as they arrive at the airport, even if that means gobbling it down in a minute before walking through the security checkpoints.
It is now a common belief that continously drinking water (6 to 8 glasses a day according to NHS, at least two litres -half a gallon- according to other sources) is the healthy thing to do. Read more »
*This blog post was originally published at Diario Medico*
July 6th, 2010 by Medgadget in Better Health Network, News, Opinion, Research
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Researchers at the University of Utah and IsoForensics, Inc. in Salt Lake City have demonstrated that water can potentially be used as a tracer to determine the travel habits of individuals.
Because of the natural geographic variability in the hydrogen and oxygen isotope content of water, proteins within hair should contain evidence of these ratios and therefore act as signatures as to where someone has traveled. The current study has shown that the geographic source of tap water, bottled water, beer, and soda can be distinguished simply by measuring the isotope ratio of the water within these drinks.
In our opinion if the technology pans out for real-world use, IsoForensics has a bright future with dictatorship governments, security and intelligence services, armed forces, and maybe even some legitimate forensic causes such as war-crime investigations or even anthropology studies.
Abstract in the Journal of Agricultural and Food Chemistry: Links between Purchase Location and Stable Isotope Ratios of Bottled Water, Soda, and Beer in the United States
Image credit: David Hannah
*This blog post was originally published at Medgadget*
