Using new laboratory technology, scientists have shown that cellular damage is detectable in patients after CT scanning. In this study, researchers examined the effects on human cells of low-dose radiation from a wide range of cardiac and vascular CT scans. These imaging procedures are commonly used for a number of reasons, including management of patients suspected of having obstructive coronary artery disease, and for those with aortic stenosis, in preparation of transcatheter aortic valve replacement.

Source: DNA damage seen in patients undergoing CT scanning, study finds — ScienceDaily

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Your brain gets all the glory while your other nervous system, the Peripheral Nervous System (PNS) toils away in thankless obscurity. What’s the PNS? Oh, merely the neurons that live outside of your Central Nervous System (CNS) and control your muscles, digestion, internal organs … mundane stuff like that, without which you would die. The nerves that cause your knee jerk response in the doctor’s office are an example of PNS neurons.

Source: Four Fun Facts About Your Peripheral Nervous System | Psychology Today

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(CNN)The city of Berkeley, California, passed a law that goes into effect next month requiring cell phone stores to inform customers about safety recommendations. The move reopened a decades-old debate about whether mobile phones cause brain tumors. The ordinance, called the Right to Know law, will start to require retailers to give customers a handout, or display a sign in the store, telling them about federal guidelines on the amount of radiation that cell phones can emit and the instructions on safe phone use.

Source: The science of cell phones and brain tumors – CNN.com

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The three-dimensional shape of the cerebral cortex — the wrinkled outer layer of the brain controlling many functions of thinking and sensation — strongly correlates with ancestral background, researchers have found. The study opens the door to more precise studies of brain anatomy going forward and could eventually lead to more personalized medicine approaches for diagnosing and treating brain diseases.

Source: A new wrinkle: Geometry of brain’s outer surface correlates with genetic heritage: Patterns in sulci and gyri don’t predict cognitive ability, but may help diagnose disease — ScienceDaily

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Chocolate, a fermented extract of the seed pods of the Theobroma cacao plant, is one of the world’s most popular foods. Given the caffeine, theobromides, and rich number of flavanols in chocolate, it’s no surprise that cocoa has been used as a medicine for at least 3000 years for varying conditions such as fatigue, rheumatism, and even syphilis*. Could these chemical compounds have a beneficial effect on the brain?

Source: Your Brain on Chocolate | Psychology Today

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