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Why Menopause Evolved
Date: Aug-24-2012The menopause evolved, in part, to prevent competition between a mother and her new daughter-in-law, according to research published in the journal Ecology Letters. The study - by researchers from the University of Turku (Finland), University of Exeter (UK), University of Sheffield (UK) and Stanford University (US) - explains for the first time why the relationship women had with their daughter-in-laws could have played a key role...
Acetaldehyde Formed After Alcohol Consumption Damages DNA, May Increase Risk Of Cancer
Date: Aug-24-2012Almost 30 years after discovery of a link between alcohol consumption and certain forms of cancer, scientists are reporting the first evidence from research on people explaining how the popular beverage may be carcinogenic. The results, which have special implications for hundreds of millions of people of Asian descent, were reported at the 244th National Meeting & Exposition of the American Chemical Society. Silvia Balbo, Ph.D., who led the study, explained that the human body breaks down, or metabolizes, the alcohol in beer, wine and hard liquor...
Bipolar Disorder During Pregnancy
Date: Aug-24-2012The impact of bipolar disorder during pregnancy has been hotly contended among the research community. Now, a new study from Lawson Health Research Institute and Western University is sorting out the debate and calling for more targeted, prospective research. Bipolar disorder is characterized by depression, hypomania, or mania. It is most common among women, and its episodes are often concentrated during the height of the reproductive years. Bipolar disorder can lead to suicide, infanticide, and increased risk for psychiatric hospitalization during the postpartum period...
Large Health Gaps Found Among Black, Latino, And White Fifth-graders
Date: Aug-24-2012Substantial racial and ethnic disparities were found for a broad set of harmful health-related issues in a new study of 5th graders from various regions of the U.S. conducted by Boston Children's Hospital and a consortium of research institutions. Black and Latino children were more likely than white children to report everything from witnessing violence to engaging in less exercise to riding in cars without wearing seatbelts...
Keeping Kids Alert In The Classroom: New Device Monitors Air For Carbon Dioxide Levels That May Make Them Drowsy
Date: Aug-24-2012With nearly 55 million students, teachers and school staff about to return to elementary and secondary school classrooms, scientists described a new hand-held sensor - practical enough for wide use - that could keep classroom air fresher and kids more alert for learning. They reported on the device at the 244th National Meeting & Exposition of the American Chemical Society, the world's largest scientific society. The sensor detects the amount of carbon dioxide (CO2) in classroom air...
What Is Blood Sugar? What Is Blood Glucose?
Date: Aug-24-2012Blood sugar or blood glucose refers to sugar that is transported through the bloodstream to supply energy to all the cells in our bodies. The sugar is made from the food we eat. The human body regulates blood glucose levels so that they are neither too high nor too low - maintaining a condition of stability or equilibrium in the blood's internal environment (homeostasis) is necessary for our bodies to function. The use of the word "sugar" in "blood sugar" is a colloquial term, a misnomer. Glucose, one type of sugar, is the one in the bloodstream that feeds cells and matters to us...
University Of East Anglia Breakthrough Boosts Bacterial Understanding
Date: Aug-24-2012Having healthy gut bacteria could have as much to do with a strategy that insurance companies use to uncover risk as with eating the right foods, according to researchers at the University of East Anglia (UEA). Findings published in Ecology Letters show how researchers applied a strategy used by insurance companies to understand how animals and plants recruit beneficial bacteria. The breakthrough brings scientists closer to understanding the human body's relationship with bacteria, which account for nine cells out of every 10 in our bodies...
Unvaccinated Kids Put Others At Risk
Date: Aug-23-2012According to new research from the University of Pennsylvania School of Nursing, parents are causing a new problem for their children by worrying about the safety of vaccinations: the comeback of their grandparents' childhood diseases. Controversy over children's immunizations has caused an increasing number of parents refusing to get their kids vaccinated, even though there has been a great success of immunizations, said Penn Nursing researcher Alison M. Buttenheim, Ph.D., MBA, in the American Journal of Public Health...
Osteoporosis Clue Found In Stem Cell Signalling Protein
Date: Aug-23-2012Understanding how a well-known signalling protein influences whether bone marrow stem cells turn into bone or fat could transform scientists' view of osteoporosis and lead to new treatments for the bone-thinning disease. These are the implications of a new study led by Harvard Medical School (HMS) that was published online in The Journal of Clinical Investigation on 13 August...
Our Perception Of Time Varies When We Are Having Goal-Motivated Fun
Date: Aug-23-2012Although we know the seconds on a clock always tick at the normal pace, most of us have experienced the 'fourth dimension', which is anything but ordinary. Have you ever waited in line or sat through a boring meeting and time seemed to be barely moving? Or what about when you're having so much fun that you seem to lose sense of time altogether? A new study from psychological science suggests that the old saying 'time flies when you're having fun' might really be true, with a slight twist: time flies when you're having goal-motivated fun...
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