Neuroscientist Paul Bach-y-Rita hypothesized in the 1960s that "we see with our brains not our eyes." Now, a new device trades on that thinking and aims to partially restore the experience of vision for the blind and visually impaired by relying on the nerves on the tongue's surface to send light signals to the brain.
Legal blindness is defined by U.S. law as vision that is 20/200 or worse, or has a field of view that is less than 20 degrees in diameter. The condition afflicts more than one million Americans over the age of 40, according to the National Institutes of Health. Adult vision loss costs the country about $51.4 billion per year.
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Humans have long enjoyed crowing about their
Your brain needs exercise just like a muscle. If you use it often and in the right ways, you will become a more skilled thinker and increase your ability to focus. Here are 5 simple techniques to exercise your brain.
Physicians should recommend low to moderate levels of exercise to their pregnant patients, even if they have not exercised prior to pregnancy, according to a new report.
An interview with author Larry Dossey, MD, author of The Power of Premonitions

