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Health Bulletin


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  1. #891
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    Re: Health Bulletin

    According to Scientists, This is The Most Relaxing Tune Ever Recorded

    This eight minute song is a beautiful combination of arranged harmonies, rhythms and bass lines and thus helps to slow the heart rate, reduce blood pressure and lower levels of the stress. The song features guitar, piano and electronic samples of natural soundscapes.

    A study was conducted on 40 women, who were connected to sensors and had been given challenging puzzles to complete against the clock in order to induce a level of stress. Different songs were then played, to test their heart rate, blood pressure, breathing and brain activity.

    The results showed that the song Weightless was 11 per cent more relaxing than any other song and even caused drowsiness among women in the lab.

    It induced a 65 per cent reduction in overall anxiety and brought them to a level 35 per cent lower than their usual resting rates.

    Moreover, sound therapies have been used for thousands of years to help people relax and improve health and well-being. Among indigenous cultures, music has been the heart of healing and worship. The song, weightless is ideal for unwinding and putting an end to a stressful day.

    According to Dr David Lewis-Hodgson, from Mindlab International, which conducted the research, this song induced the greatest relaxation, higher than any other music tested till date. In accordance to the Brain imaging studies, music works at a very deep level within the brain, stimulating not only those regions responsible for processing sound but also ones associated with emotions. The song Weightless can make one drowsy and hence should not be heard while driving.
    Marconi Union - Weightless (Radox) HighQuality Audio (most relax




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  2. #892
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    Re: Health Bulletin

    Glasses that help doctors live-stream surgeries, check patient's parameters

    For about a month now, laparoscopic gynaecologist Dr Rakesh Sinha has been trying out a new technique in the operation theatre in his Khar hospital. Before making the first incision, he gently says, "Go glass". The unobtrusive Google Glass he wears over his spectacles then starts recording the surgery, capturing the surgeon's view in hi-definition.

    Welcome to the Google Glass-enabled operation theatre. While Chennai surgeon J S Rajkumar was the first to live-stream a surgery using Google Glass from Lifeline Hospitals in September 2013, the Mumbai chapter is developing medical "apps" for the glass along with an American company.

    "This glass is like science fiction," said Dr Sinha. "I can seamlessly share and learn while operating," said Dr Sinha. Doctors using the glassware—as the wearable technology is called in the tech circles—can immediately beam the surgery to the world or surf the internet to learn about complications even while operating.

    Last week, Beth Israel Deaconess Medical Center in New York started using the glassware in its emergency ward. Closer home, Public Health Foundation of India is waiting to launch its Swasthya Slate in Jammu & Kashmir government's mother and child programme. "The Slate is a computer tablet that will help ASHA (accredited social health activist) conduct and transmit results of 30-odd diagnostic tests, including an ECG, blood pressure or malaria," said Dr Srinath Reddy of PHFI. Dr Sinha and his doctor son, Rushindra, have been working on Google Glass applications that will help doctors read a patient's file or even talk to an expert remotely for advice. "Why should a doctor need to read a patient's ultrasound record from a file kept near the operating table when he or she can just view it on the glassware?" they asked. They have so far used their Google Glasses in eight surgeries.

    Their American collobarator, Chris Vukin from Ever Med, told TOI in an email reply: Glassware can make your doctor ten times more efficient. "It gives patients hands-free tools for dealing with everyday tasks such as medication reminders," he said.


  3. #893
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    Re: Health Bulletin

    Rigorous exercise reduces flu risk

    Doing at least two-and-a-half hours a week of activity that leads to sweating or hard breathing reduces flu or flu-like illness by around 10 percent, says expert.

    Taking part in vigorous exercise such as running, rapid cycling or rugby cuts the risk of catching flu.

    More gentle pursuits such as walking or light jogging were found to have little effect.

    Experts at the London School of Hygiene and Tropical Medicine examined data from its online flu study, Flusurvey.

    They found overall flu levels appear to be down on last year, with the flu season apparently curbed by a lack of illness among children and young people, reports mirror.co.uk.

    Over the winter flu season, 4.7 percent of people were believed to have flu compared to 6 percent the previous year.

    Some 5 percent of children were reported to have flu, compared to almost 8 percent the previous year.

    More than 4,800 people took part in this year's Flusurvey so far.

    Alma Adler, research fellow at the London School of Hygiene and Tropical Medicine, said: "We need to treat this result cautiously as these are preliminary findings. However they are consistent with findings for other conditions and really show the health benefits of exercise."


  4. #894
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    Re: Health Bulletin

    ‘Contagious yawning is not linked to empathy’

    Contagious yawning has been a mystery and scientists have little idea what causes it. Now, a study from the Duke Centre for Human Genome Variation in Durham , USA, has found that yawning may decrease with age and is not strongly related to variables like empathy, tiredness and energy levels.

    Contagious yawning occurs in humans and chimps in response to hearing, seeing or thinking about yawning. It differs from spontaneous yawning, which occurs when someone is bored or tired.

    In the new study, 328 volunteers watched a video of people yawning, and the researchers recorded the number of times they yawned. The researchers did not find a strong link between contagious yawning and empathy , intelligence or time of day. The only independent factor that significantly influenced contagious yawning was age: as age increased, participants were less likely to yawn.

    But age was only able to explain 8% of the variability in contagious yawning. "The majority of variation was just not explained," the team said.


  5. #895
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    Re: Health Bulletin

    Brain reacts unconsciously to our body movement?

    Researchers from University College London and Cambridge University have found evidence of a specialized mechanism in the human brain that takes in visual information about our body and triggers an instant, unconscious response.

    Standard visual processing is prone to distractions as it requires us to pay attention to objects of interest and filter out others. The new study has shown that our brains have separate 'hard-wired' systems to visually track our own bodies, even if we are not paying attention to them.

    The network triggers reactions even before the conscious brain has time to process them. The pathway explains why schizophrenia patients feel their actions are controlled by someone else.

    The researchers said, "If someone does not automatically link visual cues with body motion, then they might have the feeling that they are not controlling their movements ." These findings could also explain why people with even advanced prosthetic limbs can have trouble coordinating movements.


  6. #896
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    Re: Health Bulletin

    It’s official: Angry people actually ‘see red’

    Angry people really do "see red" where others don't, scientists have shown. And a preference for red over blue may even be an indicator of a more hostile personality. In a study examining humankind's ancient association of the colour red with anger, aggression and danger, researchers found that when shown images that were neither fully red nor fully blue, people with hostile personalities were much more likely to see red.

    Scientists said that the connection may be linked to our evolution from ancestral hunter-gatherer times to link red with danger and threats.

    The research is believed to be the first to look at personality, hostility and the colour red, and involved a number of separate experiments.

    In the first, researchers from North Dakota State University asked a group of people which colour they preferred, red or blue. Participants then completed personality tests. Results showed that those who opted for red tended to be inter-personally more hostile.

    During a second test, participants were presented with images which were faded so they were red or blue to some extent. There was no absolutely dominant colour, and they could be perceived as either. Those who predominantly saw red scored 25% higher on indicators of hostility in the personality test section of the study.

    "Hostile people have hostile thoughts; hostile thoughts are implicitly associated with the colour red, and therefore hostile people are biased to see this colour more frequently," the researchers said, reporting their findings in the Journal of Personality.

    The test participants were presented with imaginary scenarios where they could take various forms of action. Red-preferring people were more likely to indicate that they would harm another person in the scenarios than those who preferred blue.

    "A core take-home message from this research is that colour can convey psychological meaning and, therefore, is not merely a matter of aesthetics," the researchers said.


  7. #897
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    Re: Health Bulletin

    New glucose tolerance test shows spike in incidence of gestational diabetes

    The number of pregnant women diagnosed with gestational diabetes mellitus has doubled after the glucose challenge test was introduced in government hospitals two years ago. While this has led to government hospitals often facing an insulin shortage, gynaecologists say it has made protection of the foetus from the effects of gestational diabetes more effective.

    In Coimbatore Medical College, 4 per cent, or 105 of 2,556 pregnant women tested between September 2013 and January 2014 were found to have diabetes. Doctors say this is a two to five-fold increase from the 1 to 2 per cent of women diagnosed earlier by conducting other tests. "Earlier, we used to do a simple blood sugar test for which the number of women testing positive were much lower," says Dr S Revwathy, dean, Coimbatore Medical College.

    Though most women diagnosed with high blood sugar levels are prescribed new meal plans and simple physical exercises, many of them need insulin due to other complications. This along with increase in juvenile and type 1 diabetes often leaves government hospitals across the state short on glucose.

    Pregnant women have been made to take the glucose challenge test (GCT) or Glucose Tolerance Test (GTT) over the last two years, which gynaecologists feel are a lot more effective. According to Federation of Obstetric and Gynaecological Societies of India (FOGSI), the numbers could be as high as 10%. This increase in numbers has led to most nursing homes and maternity clinics employing full time diabetologists.

    "The numbers are definitely increasing, but they point towards better diagnosis rather than an increase in gestational diabetes in women," says gynaecologist and infertility expert Dr Kannagi Uthararaj. The Glucose Challenge Test is a method by which the patient is orally administered 50gms of glucose, told not to consume anything for the next one hour, and is then tested for blood sugar levels. Sugar levels above 140 indicate diabetes. The Glucose Tolerance Test (GTT) is a method by which a patient is administered anywhere between 75gms to 100gms of glucose and has their blood tested every hour for two or three hours. "These tests when done in the very initial stages of pregnancy help us prevent diabetes with dietary changes alone, which in turns protects the foetus" says Dr Uthararaj.

    High blood sugar levels in a pregnant woman during the first trimester could lead to a range of serious complications such as development of foetal anomalies, premature lungs in new born babies leading to breathing difficulties and intra uterine foetal death, says Dr Asha Rao, director, Rao Hospital and Care. "It also helps us prevent conditions like foetal macrosomia, where the baby is more than 4 kg and glucose is considered toxic for the baby," says Dr Uthararaj.

    Doctors recommend pregnant women undergo the GCT or GTT test every trimester of their pregnancy. "We usually manage their diabetes with just new meal plans. Only in extreme cases do we prescribe medication for patients," says Dr Rao.


  8. #898
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    Re: Health Bulletin

    Honey found to be giant killer of antibiotic resistant bugs

    Scientists have confirmed an age-old Indian recipe to boost our immune system - honey.

    Honey, that delectable condiment for breads and fruits, could be one sweet solution to the serious, ever-growing problem of bacterial resistance to antibiotics.

    The American Chemical Society (ACS), the world's largest scientific society reported on Monday that honey is highly effective against drug resistant bugs because it is filled with healthful polyphenols, or antioxidants.

    These include the phenolic acids, caffeic acid, p-coumaric acid and ellagic acid, as well as many flavonoids.

    Scientists have confirmed that honey uses a combination of weapons, including hydrogen peroxide, acidity, osmotic effect, high sugar concentration and polyphenols — all of which actively kill bacterial cells.

    The osmotic effect, which is the result of the high sugar concentration in honey, draws water from the bacterial cells, dehydrating and killing them.

    Honey also inhibits the formation of biofilms or communities of slimy disease-causing bacteria. Honey also disrupts quorum sensing, which weakens bacterial virulence, rendering the bacteria more susceptible to conventional antibiotics.

    Quorum sensing is the way bacteria communicate with one another, and may be involved in the formation of biofilms.

    In certain bacteria, this communication system also controls the release of toxins, which affects the bacteria's pathogenicity, or their ability to cause disease.

    "Several studies have demonstrated a correlation between the non-peroxide antimicrobial and antioxidant activities of honey and the presence of honey phenolics. A large number of laboratory and limited clinical studies have confirmed the broad-spectrum antibacterial, antifungal and antiviral properties of honey," study leader Susan M Meschwitz from the Salve Regina University said.

    "The unique property of honey lies in its ability to fight infection on multiple levels, making it more difficult for bacteria to develop resistance," Meschwitz added.

    Meschwitz said another advantage of honey is that unlike conventional antibiotics, it doesn't target the essential growth processes of bacteria. The problem with this type of targeting, which is the basis of conventional antibiotics, is that it results in the bacteria building up resistance to the drugs.

    She said that her team also is finding that honey has antioxidant properties and is an effective antibacterial. "We have run standard antioxidant tests on honey to measure the level of antioxidant activity," she explained. "We have separated and identified the various antioxidant polyphenol compounds. In our antibacterial studies, we have been testing honey's activity against E. coli, Staphylococcus aureus and Pseudomonas aeruginosa, among others".


  9. #899
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    Re: Health Bulletin

    New research links body clocks to chronic lung diseases

    Using the body clock effectively could keep lung diseases away, suggests a new research from Manchester University.

    This study is part of on-going research into how chronic disruption to body clocks by changes like ageing or shift work contribute to a number of conditions such as osteoarthritis, cardiovascular disease, breast cancer and mood disorder.

    The new study which is published in the Genes & Development journal has, for the first time, found that the circadian clock in the mouse lung rhythmically switches on and off genes controlling the antioxidant defense pathway. This 24 hourly rhythm enables the lungs to anticipate and withstand daily exposure to pollutants.

    Lead researcher Dr Qing-Jun Meng from The University of Manchester said, "We used a mouse model that mimics human pulmonary fibrosis, and found that an oxidative and fibrotic challenge delivered to the lungs during the night phase (when mice are active) causes more severe lung damages than the same challenge administered during the day which is a mouse's resting phase."

    The researchers interpret this to mean that drugs for given as per the lung clock time could increase their effectiveness, allowing for lower dosage and fewer side effects.

    Dr Vanja Pekovic-Vaughan, who was part of the university's research team, said: "This research is the first to show that a functioning clock in the lung is essential to maintain the protective tissue function against oxidative stress and fibrotic challenges. We envisage a scenario whereby chronic rhythm disruption (e.g., during ageing or shift work) may compromise the temporal coordination of the antioxidant pathway, contributing to human disease."


  10. #900
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    Re: Health Bulletin

    Fear of math may lie in your genes

    Genetic factors may put some people at a greater risk of developing math anxiety, a new study has found.

    Researchers from the Ohio State University found that some people may be at greater risk to fear math not only because of negative experiences, but also because of genetic risks related to both general anxiety and math skills.

    The study, which examined how fraternal and identical twins differ on measures of math anxiety, provides a revised view on why some children — and adults — may develop a fear of math that makes it more difficult for them to solve math problems and succeed in school.

    "We found that math anxiety taps into genetic predispositions in two ways: people's cognitive performance on math and their tendency toward anxiety," said Zhe Wang, lead author of the study and postdoctoral researcher in psychology at The Ohio State University.

    In the study, genetic factors explained about 40 per cent of the individual differences in math anxiety. Much of the rest was explained by the different environments — in the school, in the home and elsewhere — that the twins experienced.

    The results do not mean that math anxiety can be blamed solely or even mostly on genetic factors, the researchers cautioned.

    But the findings do suggest that we can't say that classroom quality, aspects of the home, or other environmental factors are the only reasons why people differ in how they experience math, researchers said.

    "Genetic factors may exacerbate or reduce the risk of doing poorly at math," said Stephen Petrill, professor of psychology at Ohio State, and the principal investigator of the study.

    "If you have these genetic risk factors for math anxiety and then you have negative experiences in math classes, it may make learning that much harder. It is something we need to account for when we're considering interventions for those who need help in math," Petrill said.

    The study will be published in the Journal of Child Psychology and Psychiatry.


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