In spite of existing research, there are some seemingly scientific myths that just can’t seem to be dispelled. Here are a few myths and some excellent posts discussing their merit and why they may persist.

Why Using 100% Of Your Brain Would Make You 0% Smarter.
If you’ve ever been on the freeway and saw the guy next to you holding his coffee with one hand, texting with the other, and steering with his kneecap while doing 80, you might find it quite plausible that humans only use 10% of their brain. This is actually a scientific urban legend, though, and quite far from the truth. The man you see is engaging many parts of his brain – the driving uses the cerebellum, the texting uses his frontal lobe, reading his texts uses his visual cortex. He finally heard you honking after his kneecap steered into your lane. That’s the temporal lobe. Although this man may not be using his brain very well, he is still using it. The myth that we only use 10% of the brain is roughly 100 years old, and is somewhat ingrained in our culture. functional MRI however shows that even with simple tasks….read more of Ariana Anderson’s excellent post on Science 2.0

“Waterlogged”–and the myth of 8 glasses of water/day
Water, water everywhere. Should doctors be telling people to drink more water as a public health issue? Hydration for Health, an initiative to promote drinking more water, held its annual scientific meeting in Evian, France, last week. The initiative has shown its fervour for water with recent adverts in the medical press, including the BMJ. The website states that its mission is “to establish healthy hydration as an integral part of public health nutritional guidelines and routine patient counselling so people can make informed choices.” It believes that “Healthcare professionals should be encouraged to talk with patients about the calorific content of SSBs [sugar sweetened beverages] when discussing lifestyle modification to manage overweight and/or obesity . . . Consumption of water in preference to other beverages should be highlighted as a simple step towards healthier hydration.” And healthier hydration is? “recommending 1.5 to 2 litres of water daily is the simplest and healthiest hydration advice you can give.” Hydration for Health has a vested interest: it is sponsored and was created by French food giant Danone. This company produces Volvic, Evian, and Badoit bottled waters. The initiative’s website is bold…read more from Margaret McCartney’s post on the BMJ’s website

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