Alertness
Restless legs syndrome, insomnia and brain chemistry: A tangled mystery solved?
Johns Hopkins researchers believe they may have discovered an explanation for the sleepless nights associated with restless legs syndrome (RLS), a symptom that persists even when the disruptive, overwhelming nocturnal urge ...
Neuroscience
May 07, 2013 |
4.4 / 5 (5) |
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Why some stress is good for you? Acute stress primes the brain to do better on memory tasks two weeks later
(Medical Xpress)—Overworked and stressed out? Look on the bright side. Some stress is good for you.
Neuroscience
Apr 16, 2013 |
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Team discovers how cells distinguish friend from foe
(Medical Xpress)—Researchers at UC Davis have shown how the innate immune system distinguishes between dangerous pathogens and friendly microbes. Like burglars entering a house, hostile bacteria give themselves away by ...
Immunology
Apr 01, 2013 |
4.3 / 5 (3) |
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Is this peptide a key to happiness?
(Medical Xpress)—What makes us happy? Family? Money? Love? How about a peptide? The neurochemical changes underlying human emotions and social behavior are largely unknown. Now though, for the first time in humans, scientists ...
Psychology & Psychiatry
Mar 07, 2013 |
4.9 / 5 (8) |
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Wolf in sheep's clothing: Uncovering how deadly bacteria trick immune system
An outbreak of tuberculosis in the skid row area of downtown Los Angeles may have exposed up to 4,500 individuals to the bacterium that causes the deadly disease and has left federal officials scrambling ...
Medical research
Feb 28, 2013 |
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New discovery shows genetic causes of rare bone condition
(Medical Xpress)—Researchers at the University of Oxford have discovered two new genetic causes of craniosynostosis, a rare bone condition that can inhibit brain growth in children.
Genetics
Jan 29, 2013 |
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Rats' stroke-induced seizures stopped with pulse of light
(Medical Xpress)—Stanford University School of Medicine scientists have shown that a structure deep within the brain is a crucial component of recurring seizures that can arise as a delayed consequence of a cerebral stroke. ...
Neuroscience
Nov 08, 2012 |
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New study shows that even your fat cells need sleep
In a study that challenges the long-held notion that the primary function of sleep is to give rest to the brain, researchers have found that not getting enough shut-eye has a harmful impact on fat cells, reducing by 30 percent ...
Medical research
Oct 15, 2012 |
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Hearing brains are 'deaf' to disappearance of sounds, study reveals
Our brains are better at hearing new and approaching sounds than detecting when a sound disappears, according to a study published today funded by the Wellcome Trust. The findings could explain why parents often fail to notice ...
Neuroscience
Sep 27, 2012 |
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How attention helps you remember
A new study from MIT neuroscientists sheds light on a neural circuit that makes us likelier to remember what we're seeing when our brains are in a more attentive state.
Neuroscience
Sep 27, 2012 |
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Genetic predictors of postpartum depression uncovered
Johns Hopkins researchers say they have discovered specific chemical alterations in two genes that, when present during pregnancy, reliably predict whether a woman will develop postpartum depression.
Psychology & Psychiatry
May 21, 2013 |
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Music therapy reduces anxiety, use of sedatives for patients receiving ventilator support
New research suggests that for some hospitalized ICU patients on mechanical ventilators, using headphones to listen to their favorite types of music could lower anxiety and reduce their need for sedative medications.
Psychology & Psychiatry
May 20, 2013 |
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Human disease leptospirosis identified in new species, the banded mongoose, in Africa
(Medical Xpress)—The newest public health threat in Africa, scientists have found, is coming from a previously unknown source: the banded mongoose. Leptospirosis, the disease is called. And the banded mongoose ...
Diseases, Conditions, Syndromes
May 14, 2013 |
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T cells rely on 'rheostat' to help ensure that the immune response matches the threat
A properly functioning immune system is a lesson in balance, providing protection against disease without attacking healthy tissue. Work led by St. Jude Children's Research Hospital scientists and published recently in Nature Im ...
Immunology
Apr 30, 2013 |
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MDs warn teens: Don't take the cinnamon challenge
Don't take the cinnamon challenge. That's the advice from doctors in a new report about a dangerous prank depicted in popular YouTube videos which has led to hospitalizations and a surge in calls to U.S. ...
Pediatrics
Apr 22, 2013 |
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Alertness is the state of paying close and continuous attention, being watchful and prompt to meet danger or emergency, or being quick to perceive and act. It is related to psychology as well as to physiology. A lack of alertness is a symptom of a number of conditions, including narcolepsy, attention deficit disorder, chronic fatigue syndrome, depression, Addison's disease, or sleep deprivation. The word is formed from "alert", which comes from the Italian "all'erta" (on the watch, literally, on the height; 1618)
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
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Depression raises diabetics' risk of severe low blood sugar episodes
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Diabetes' genetic underpinnings can vary based on ethnic background, studies say
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Motion quotient: IQ predicted by ability to filter motion (w/ video)
A brief visual task can predict IQ, according to a new study. This surprisingly simple exercise measures the brain's unconscious ability to filter out visual movement. The study shows that individuals whose ...
Multiple research teams unable to confirm high-profile Alzheimer's study
Teams of highly respected Alzheimer's researchers failed to replicate what appeared to be breakthrough results for the treatment of this brain disease when they were published last year in the journal Science.
