ScienceDaily Health Headlines
for Saturday, December 6, 2008
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Happiness Is 'Infectious' In Network Of Friends: Collective -- Not Just Individual -- Phenomenon (December 5, 2008) -- Happiness spreads through social networks like an emotional contagion, according to a study that looked at nearly 5,000 individuals over a period of 20 years. When an individual becomes happy, the network effect can be measured up to three degrees. One person's happiness triggers a chain reaction that benefits not only his friends, but his friends' friends, and his friends' friends' friends. The effect lasts for up to one year. Conversely, sadness does not spread through social networks as robustly as happiness. ... > full story
Escape Cancer, But Age Sooner? The Dark Side Of The Tumor Suppressing Process (December 5, 2008) -- Cells shut down and stop dividing when their DNA is damaged so as to prevent damaged DNA from leading to unregulated cell division and therefore cancer. However, a new study has found that when these cells shut down they also spew proteins into their surrounding environment. This causes inflammation and sets up conditions that support the development of age-related diseases including, ironically, cancer. ... > full story
New Study Identifies Link Between Alzheimer's Disease Biomarkers In Healthy Adults (December 5, 2008) -- A study published in the Journal of Alzheimer's Disease provides an insight into normal, physiological levels and association between proteins involved in development of Alzheimer's disease. A group of scientists and physicians performed a study in cognitively normal and generally healthy adults, from young to old (age range 21-88 years), of both genders, measuring levels of different brain-derived molecules associated with AD. ... > full story
Cardiovascular Disease Causing Increasing Inequity Between Rich And Poor, Study Finds (December 5, 2008) -- A new paper is warning a cardiovascular disease based epidemic is gaining pace among many low- and middle-income countries (LMIC), exemplified at its worst in the world's largest populated countries -- China and India. Preventive cardiovascular treatments that are widely available in high income countries are not yet widely accessed in LMIC, contributing to an escalating inequality in health status between rich and poor. ... > full story
Virtual Faces Created With Emotions, Moods And Personality (December 5, 2008) -- Computer scientists developed a computer model that enables the creation of faces which for the first time display emotions and moods according to personality traits. ... > full story
Extraordinary Immune Cells May Hold The Key To Managing HIV (December 5, 2008) -- People who manage to control HIV on their own are providing scientists with valuable information about how the immune system eliminates virus-infected cells. A new study identifies specific characteristics of the immune cells that successfully destroy HIV-infected cells and may drive strategies for developing the next generation of HIV vaccines and therapies. ... > full story
Maternal Exposure To Folic Acid Antagonists Increases Risks Of Certain Adverse Pregnancy Outcomes (December 5, 2008) -- Exposure to folic acid antagonists during pregnancy is associated with a higher risk of placenta-mediated adverse outcomes such as preeclampsia, placental abruption, fetal growth restriction or fetal death reports a retrospective cohort study. ... > full story
Easing The Stress Of Trauma (December 5, 2008) -- Post-traumatic stress disorder (PTSD) affects as many as one in five of all Americans who survive a harrowing experience like rape, assault, war or terrorism. It has emotionally paralyzed survivors of 9/11 and broken up survivors’ families. There is no broadly accepted treatment that can lower the chance of developing the disorder, but thanks to new research, a medical means of preventing PTSD may be just around the corner. ... > full story
New Screening Tool To Identify Patients With Prediabetes (December 5, 2008) -- Scientists have created a clinical tool to identify those at highest risk for having undetected hyperglycemia, impaired fasting glucose and undiagnosed diabetes. If these conditions are identified early, patients may benefit from preventative strategies that can minimize progression to diabetes, other diseases and mortality. ... > full story
Researchers Identify Cell Group Key To Lyme Disease Arthritis (December 5, 2008) -- A research team has illuminated the important role of natural killer T cells in Lyme disease, demonstrating that the once little understood white blood cells are central to clearing the bacterial infection and reducing the intensity and duration of arthritis associated with Lyme disease. ... > full story
Subtitles Do Not Guarantee Hearing-impaired Viewers A Total Comprehension Of Television Messages (December 5, 2008) -- Researchers have studied the level of comprehension of subtitled television programs by groups of students who have a severe or profound hearing impairment. The results demonstrate that deaf children and adolescents have difficulties in following subtitles and images together, due to the speed at which the subtitles appear and the literal transcription of the dialogues. ... > full story
Mobile Phones Affect Memory In Laboratory Animals, Swedish Study Finds (December 5, 2008) -- Can radiation from cell phones affect memory? Yes -- at least it appears to do so in one series of rat experiments conducted in Sweden. Researchers studied rats that were exposed to mobile phone radiation for two hours a week for more than a year. These rats had poorer results on a memory test than rats that had not been exposed to radiation. ... > full story
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