ScienceDaily: Top Health News

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• Psychologist discovers intricacies about lying
• Clinical tool classifies spots on lung scans of smokers
• DNA changes during pregnancy persist into childhood
• Your finger's pulse holds the key to your heart's health
• Heart attack death rates unchanged in spite of faster care at hospitals
• Look at what i'm saying: Engineers show brain depends on vision to hear
• Youthful stem cells from bone can heal the heart
• Chemotherapy helps elderly patients with small cell lung cancer
• Discovery shows cerebellum plays important role in sensing limb position and movement
• Experimental compound reverses down syndrome-like learning deficits in mice
• New laser-based tool could dramatically improve the accuracy of brain tumor surgery
• Training the older brain in 3-D: Video game enhances cognitive control
• New pathway discovered in blood vessel inflammation and disease
• TB and Parkinson's disease linked by unique protein
• Biologists uncover details of how we squelch defective neurons
• More than one-third of populations worldwide may have low levels of vitamin D, study shows
• Bismuth-carrying nanotubes show promise for CT scans
• Faulty internal recycling by brain's trash collectors may contribute to Alzheimer's
• Alzheimer's 'missing link' found: Promising target for new drugs
• Pain-free microneedle influenza vaccine is effective, long-lasting
• The difference between obsession and delusion
• Why energy drinks are harming children, adolescents
• Childhood adversity linked to higher risk of early death
• 'Seeing' faces through touch: Brain may code facial information in shared representation between vision and haptics
• Links made between problem gambling and substance abuse, and lack of treatment options
• Better hygiene in wealthy nations may increase Alzheimer's risk, study suggests
• Simian foamy viruses readily occur between humans and macaques in urban Bangladesh
• Air pollution worsened by climate change set to be more potent killer in the 21st century
• Scientists link a protein to initial tumor growth in several cancers
• Discovery helps to unlock brain's speech-learning mechanism
• People who undergo cataract surgery to correct visual impairment live longer
• Using harsh verbal discipline with teens found to be harmful
• Psychological effects of genetic testing for risk of weight gain
• Treatment of children with cerebral palsy could be boosted
• Association between hormone replacement therapy use and breast cancer risk varies

Psychologist discovers intricacies about lying Posted: 04 Sep 2013 05:51 PM PDT How you remember a lie may be impacted profoundly by how you lie, according to a new study. The study examines two kinds of lies -- false descriptions and false denials -- and the different cognitive machinery that we use to record and retrieve them.

Clinical tool classifies spots on lung scans of smokers Posted: 04 Sep 2013 05:41 PM PDT A new clinical risk calculator has been developed that classifies, nine out of ten times, which spots or lesions are benign and malignant on an initial lung computed tomography scan among individuals at high risk for lung cancer.

DNA changes during pregnancy persist into childhood Posted: 04 Sep 2013 05:41 PM PDT Even before they are born, babies accumulate changes in their DNA through a process called DNA methylation that may interfere with gene expression, and in turn, their health as they grow up. But until now it's been unclear just how long these changes during the prenatal period persist. In a new study, researchers establish that signs of DNA methylation persist through early childhood.

Your finger's pulse holds the key to your heart's health Posted: 04 Sep 2013 05:36 PM PDT A new technique to measure the stiffness of the aorta, a common risk factor for heart disease, involves measuring the pulse in the finger or on the arm, combined with an individual's age and body mass index.

Heart attack death rates unchanged in spite of faster care at hospitals Posted: 04 Sep 2013 05:35 PM PDT Heart attack deaths have remained the same, even as hospital teams have gotten faster at treating heart attack patients with emergency angioplasty, according to a new study.

Look at what i'm saying: Engineers show brain depends on vision to hear Posted: 04 Sep 2013 05:35 PM PDT Bioengineers have discovered our understanding of language may depend more heavily on vision than previously thought: under the right conditions, what you see can override what you hear.

Youthful stem cells from bone can heal the heart Posted: 04 Sep 2013 01:16 PM PDT Researchers have discovered that when it comes to the regeneration of heart tissue, cortical bone-derived stem cells might do a better job than the heart's own stem cells. This finding challenges longstanding assumptions about which cells are the most effective at repairing damaged heart tissue after heart attacks.

Chemotherapy helps elderly patients with small cell lung cancer Posted: 04 Sep 2013 01:16 PM PDT Researchers conclude that chemotherapy is associated with a greater than six-month improvement in median survival among elderly patients with small-cell lung cancer, even in patients over the age of 80 years.

Discovery shows cerebellum plays important role in sensing limb position and movement Posted: 04 Sep 2013 01:12 PM PDT New findings show, for the first time, the link between the brain's cerebellum and proprioception, or the body's ability to sense movement and joint and limb position. A new study uncovers a previously unknown perceptual deficit among cerebellar patients, suggesting that damage to this portion of the brain can directly impact a person's ability to sense the position of their limbs and predict movement. This discovery could prompt future researchers to reexamine physical therapy tactics for cerebellar patients, who often have impaired coordination or appear clumsy.

Experimental compound reverses down syndrome-like learning deficits in mice Posted: 04 Sep 2013 11:09 AM PDT Researchers have identified a compound that dramatically bolsters learning and memory when given to mice with a Down syndrome-like condition on the day of birth. The single-dose treatment appears to enable the cerebellum of the rodents' brains to grow to a normal size.

New laser-based tool could dramatically improve the accuracy of brain tumor surgery Posted: 04 Sep 2013 11:09 AM PDT A new laser-based technology may make brain tumor surgery much more accurate, allowing surgeons to tell cancer tissue from normal brain at the microscopic level while they are operating, and avoid leaving behind cells that could spawn a new tumor.

Training the older brain in 3-D: Video game enhances cognitive control Posted: 04 Sep 2013 10:25 AM PDT Scientists have found a way to reverse some of the negative effects of aging on the brain, using a video game designed to improve cognitive control.

New pathway discovered in blood vessel inflammation and disease Posted: 04 Sep 2013 10:25 AM PDT Researchers have identified a genetic factor that blocks the blood vessel inflammation that can lead to heart attacks, strokes and other potentially life-threatening events.

TB and Parkinson's disease linked by unique protein Posted: 04 Sep 2013 10:24 AM PDT A protein at the center of Parkinson's disease research now also has been found to play a key role in causing the destruction of bacteria that cause tuberculosis, according to microbiologists.

Biologists uncover details of how we squelch defective neurons Posted: 04 Sep 2013 10:04 AM PDT Biologists have identified a new component of the cellular mechanism by which humans and animals automatically check the quality of their nerve cells to assure they're working properly during development.

More than one-third of populations worldwide may have low levels of vitamin D, study shows Posted: 04 Sep 2013 10:04 AM PDT A systematic review focused on patterns of vitamin D status worldwide and in key population subgroups, using continuous values for 25(OH)D to improve comparisons. Although a high degree of variability between reports of vitamin D status at the population level was found, more than one-third of the studies reviewed reported mean serum 25(OH)D values below 50 nmol/l.

Bismuth-carrying nanotubes show promise for CT scans Posted: 04 Sep 2013 10:03 AM PDT Scientists are placing bismuth in nanotubes to tag stem cells for efficient tracking with CT scanners.

Faulty internal recycling by brain's trash collectors may contribute to Alzheimer's Posted: 04 Sep 2013 10:03 AM PDT A defective trash-disposal system in the brain's resident immune cells may be a major contributor to neurodegenerative disease, scientists have found.

Alzheimer's 'missing link' found: Promising target for new drugs Posted: 04 Sep 2013 10:03 AM PDT Researchers have discovered a protein that is the missing link in the complicated chain of events that lead to Alzheimer's disease, they report in the Sept. 4 issue of the journal Neuron. Researchers also found that blocking the protein with an existing drug can restore memory in mice with brain damage that mimics the disease.

Pain-free microneedle influenza vaccine is effective, long-lasting Posted: 04 Sep 2013 08:48 AM PDT Scientists have developed an influenza vaccine delivered via microneedle patch that provided 100 percent protection against a lethal influenza virus in mice more than one year after vaccination.

The difference between obsession and delusion Posted: 04 Sep 2013 08:48 AM PDT Because animals can't talk, researchers need to study their behavior patterns to make sense of their activities. Now researchers are using a common zoological method to study people with serious mental disorders such as schizophrenia and OCD.

Why energy drinks are harming children, adolescents Posted: 04 Sep 2013 08:43 AM PDT Parents beware. If your tots and teens get their hands on your energy drinks, they could experience seizures, heart palpitations or other problems that drive them to the hospital emergency room, experts say.

Childhood adversity linked to higher risk of early death Posted: 04 Sep 2013 07:54 AM PDT Traumatic childhood experiences are linked to an increased risk of early death, according to new research.

'Seeing' faces through touch: Brain may code facial information in shared representation between vision and haptics Posted: 04 Sep 2013 07:54 AM PDT Our sense of touch can contribute to our ability to perceive faces, according to new research. The findings suggest that facial information may be coded in a shared representation between vision and haptics in the brain.

Links made between problem gambling and substance abuse, and lack of treatment options Posted: 04 Sep 2013 07:53 AM PDT Problem gamblers are a hidden population among people with mental health or substance abuse issues. These people often don't get the treatment they need.

Better hygiene in wealthy nations may increase Alzheimer's risk, study suggests Posted: 04 Sep 2013 07:53 AM PDT New research has found a 'very significant' relationship between a nation's wealth and hygiene and the Alzheimer's 'burden' on its population. High-income, highly industrialized countries with large urban areas and better hygiene exhibit much higher rates of Alzheimer's.

Simian foamy viruses readily occur between humans and macaques in urban Bangladesh Posted: 04 Sep 2013 07:53 AM PDT Scientists have been examining transmission of a virus from monkeys to humans in Bangladesh, one of the world's most densely populated countries. The scientists have found that some people in urban Bangladesh are concurrently infected with multiple strains of simian foamy virus, including strains from more than one source (recombinant) -- and call for more surveillance to prevent another outbreak like HIV.

Air pollution worsened by climate change set to be more potent killer in the 21st century Posted: 04 Sep 2013 07:51 AM PDT This century, climate change is expected to induce changes in air pollution, exposure to which could increase annual premature deaths by more than 100,000 adults worldwide. Scientists urge, in the face of future climate change, stronger emission controls to avoid worsening air pollution and the associated exacerbation of health problems, especially in more populated regions of the world.

Scientists link a protein to initial tumor growth in several cancers Posted: 04 Sep 2013 07:51 AM PDT A team of scientists have shown that a protein once thought to inhibit the growth of tumors is instead required for initial tumor growth. The findings could point to a new approach to cancer treatment.

Discovery helps to unlock brain's speech-learning mechanism Posted: 04 Sep 2013 06:41 AM PDT By studying songbirds, scientists are uncovering the mechanism that allows juveniles to learn speech through imitation.

People who undergo cataract surgery to correct visual impairment live longer Posted: 04 Sep 2013 06:40 AM PDT People with cataract-related vision loss who have had cataract surgery to improve their sight are living longer than those with visual impairment who chose not to have the procedure, according to a new article. After comparing the two groups, the researchers found a 40 percent lower long-term mortality risk in those who had the surgery.

Using harsh verbal discipline with teens found to be harmful Posted: 04 Sep 2013 06:40 AM PDT A longitudinal study of 967 two-parent families and their children has found that harsh verbal discipline, the psychological force causing emotional pain or discomfort to correct or control behavior, in early adolescence can be harmful to teens later. Researchers found that harsh verbal discipline can cause teens to misbehave at school, lie to parents, steal, or fight. Moreover, parents' hostility increases the risk of delinquency and fosters anger, irritability, and belligerence in adolescents.

Psychological effects of genetic testing for risk of weight gain Posted: 04 Sep 2013 06:35 AM PDT Obesity gene testing does not put people off weight loss and may help to reduce self-blame, according to a new study.

Treatment of children with cerebral palsy could be boosted Posted: 04 Sep 2013 06:35 AM PDT Children with cerebral palsy could be helped to speak more clearly following the advice of new research.

Association between hormone replacement therapy use and breast cancer risk varies Posted: 03 Sep 2013 04:39 PM PDT According to a new study, risk of breast cancer associated with use of hormone replacement therapy among postmenopausal women varies when analyzed by race/ethnicity, body mass index, and breast density.

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