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Showing posts with the label Study And Research

Chinese Herb Kudzu May Help Drinkers Cut Down

In Small Study, Harvard Researchers Find Kudzu Extract Reduces Drinking  An extract from the Chinese herb kudzu may help drinkers cut down on drinking, according to a new pilot study. "It didn't stop the drinking," says researcher David M. Penetar, PhD, assistant professor of psychology at McLean Hospital and Harvard Medical School. "They still drank, but they drank less." He studied the extract puerarin. It is one of the substances known as isoflavones found in kudzu. The study is published in  Drug and Alcohol Dependence. Drinking Problems More remedies are needed to help drinkers who overdo it cut down, Penetar says. The medications approved for treating alcohol abuse and dependence don't work for everyone, he says. About 1 in 6 U.S. adults binge drinks, according to a CDC report. Experts disagree on the definition of binge drinking. According to the CDC, binge drinking is having four or more drinks on one occasion for a woman and five or more for a m

Prenatal Pesticide Exposure May Harm Kids' Brains

Common Crop Pesticide Chlorpyrifos May Be Linked With Structural Changes in Developing Brain, Experts Find Prenatal exposure to a pesticide used on many crops may be linked with abnormal changes in a child's developing brain, scientists report. Compared to children with low prenatal exposure, those with high exposure to the pesticide chlorpyrifos had abnormalities in the cortex (the outer area of the brain), says Virginia Rauh, ScD, professor and deputy director of the Columbia Center for Children's Environmental Health at the Mailman School of Public Health at Columbia University. The cortex helps govern intelligence, personality, muscle movement, and other tasks. "In areas of the cortex, we detected both enlarged and reduced volumes that were significantly different from the normal brain," she tells WebMD. "This suggests the process of normal brain development has been disturbed in some way." The study is published in  Proceedings of the National Ac

Are You Sleeping Your Life Away?

We all need a good night's sleep -- regularly -- to keep us on our physical, mental, and emotional game, but is it possible to get  too much  sleep? It seems so. Too many ZZZs might actually shorten your life, according to some research. What counts as enough, but not too much, sleep? That's tricky, because sleep -- like underwear -- isn't a one-size-fits-all proposition. Your ideal sleep prescription depends somewhat on how much you're sleeping now, according to a study of more than 10,000 people. Here's the breakdown: When people who usually slept 5 or 6 hours a night bumped up their nightly ZZZs to 7 or 8 hours, they added years to their lives.  Use this bedtime checklist of do's and don'ts to boost your time between the sheets. When people who normally slept 7 to 8 hours got more sleep, their risk of dying early rose 75%. When people who were comfortable sleeping 6 to 8 hours a night cut their sleep short, they didn't do well, and raised their m

Plastic vs. Paper Bags

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Paper or plastic? That is the question. But either one you choose has a negative impact on the environment. Here are some facts about paper and plastic shopping bags: In the U.S. 40 billion grocery bags are used each year; 30 billion are plastic, 10 billion are paper. Worldwide, between 500 billion and one trillion plastic bags are consumed annually. A family of four uses five to ten plastic or paper grocery bags per week. That equals between 600 and 1,200 bags per shopper each year. Because plastic bags are lighter than paper bags, it takes four or five bags to hold the same amount of groceries as one standard size paper bag. Plastic bags are expected to take between 20 and 1000 years to break down in the environment and in the process release toxins into the water and soil, whereas in the open environment paper bags take about a month to decompose. Plastic bags have been seen as far north as the Arctic Ocean, as far south as the southern end of South America, and one ex

Coffee Beats Skin Cancer Two Ways

Could your morning cup of Joe beat back skin cancer? It might. And it seems you may get equal protection from your java whether you sip it or slather it. It's the caffeine in coffee that seems to do the trick. Numerous animal studies have already found that ingesting caffeine protects against certain types of skin cancer. Now, a new study suggests that caffeine-based lotions may prevent the sun's UV radiation from sparking skin cancer in humans, too. Cancer-Curbing Coffee? In the study, human skin cells were first bathed in caffeine in a lab dish and then exposed to UVB radiation. The caffeine not only blocked two key mechanisms that trigger the birth of skin tumors, it also caused the death of UVB-damaged skin cells that could otherwise turn cancerous. More research is needed to confirm whether caffeine in sunscreen will protect as well as it did in a petri dish, but it can't hurt to ask your dermatologist or pharmacist about available caffeine-containing

Drugs That Control Genes May Treat Lung Cancer

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  Researchers Report Some Success Against Advanced Lung Cancer With Epigenetic Drugs A new approach to treating cancer appears to help certain patients with advanced lung cancer, and researchers say they think they may have a way of spotting those who will benefit. The small study is generating big excitement in the world of cancer treatment because it demonstrates that so-called epigenetic drugs may work when traditional chemotherapy has failed. Epigenetic drugs work by controlling gene expression -- the way information from genes is used to create products such as proteins. The study is published in Cancer Discovery . "This is a ... groundbreaking study, showing that by modifying the epigenetics of a cancer cell we can get real responses in lung cancer," said Jeffrey A. Engleman, MD, PhD, director of thoracic oncology at Massachusetts General Hospital, in Boston, in a news briefing. "And getting real responses in lung cancer is actually quite dif

Fast Baby Weight Gain Predicts Child Obesity

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  Study Suggests Double Risk of Childhood Obesity for Kids With Fastest Weight Gain by Age 2 Babies who gain weight most quickly are at highest risk of obesity later in childhood, a Harvard study finds. Infants who gain the most weight at age 1-6 months are most likely to be obese at ages 5 and 10 years. The risk goes up with the child's starting weight-for-length percentile obtained from standard growth charts, find Elsie M. Taveras, MD, MPH, and colleagues. The researchers analyzed health records for 44,622 kids aged 1 month to 11 years from 1980 through 2008. They collected height and weight measurements made during the children's first 24 months, as well as their height and weight at ages 5 and 10. Pediatricians usually monitor a child's growth by measuring weight and length and comparing it to CDC normal growth charts. The child's weight for length will typically fall within percentile lines: 5, 10, 25, 50, 75, 90, 95. Especially in t

Researchers Say Nuts to Low-Fat Diet Alone

Need to get your LDL cholesterol down (maybe way down) but your low-fat diet just isn't doing it? Try upping your intake of nuts, including soy nuts. Add a bowl of oatmeal (these are the best fast food choices) or barley soup, some soy milk, and a little cholesterol-fighting bread spread. Done. In a new study, people who ate a diet rich in these foods lowered their LDL cholesterol by at least 13% in just 6 months. The shocker: A comparison group that ate a diet low in saturated fat got only a 3% LDL reduction. Talk about surprises. (Another surprise: Oatmeal and walnuts make you feel happy, too.) A One-Two Punch Lesson learned: Cutting back on saturated fat, while a healthy idea in general, isn't enough to get your LDL where you want it. It's stubborn stuff. To smack it down, you need drugs (here's a 101 on which) or foods rich in three specific ingredients: plant sterols (phytosterols), soy protein, and sticky (viscous) fiber. These ingredients may n

Brain Parasite Directly Alters Brain Chemistry

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  Research shows infection by the brain parasite Toxoplasma gondii , found in 10-20 per cent of the UK's population, directly affects the production of dopamine, a key chemical messenger in the brain.  Findings from the University of Leeds research group are the first to demonstrate that a parasite found in the brain of mammals can affect dopamine levels. Whilst the work has been carried out with rodents, lead investigator Dr Glenn McConkey of the University's Faculty of Biological Sciences, believes that the findings could ultimately shed new light on treating human neurological disorders that are dopamine-related such as schizophrenia , attention deficit hyperactivity disorder , and Parkinson's disease . This research may explain how these parasites, remarkably, manipulate rodents' behaviour for their own advantage. Infected mice and rats lose their innate fear of cats, increasing the chances of being caught and eaten, which enables the pa

Lack of Sleep, Overweight Linked to Kids' Learning Problems

Study Suggests a Connection Between a Child's Weight, Sleep Problems, and Learning Ability Children who are overweight and don't get enough sleep may have a harder time learning, and those with learning difficulties may be at higher risk for obesity and sleep problems, new research suggests. The study found that a child's weight, sleep problems, and ability to learn are all connected, with each influencing the other. Although one expert says the study raises some interesting questions about the relationship of obesity, sleep, and intelligence, it's far too soon to even suggest that intelligence levels alone play a role in obesity or sleep problems. It is widely recognized that obesity increases the risk for sleep apnea and related conditions, known collectively as sleep-disordered breathing (SDB). Chronic lack of sleep has also been shown to have a negative impact on learning. But the new study is among the first to examine the interaction of obesit

Study: Too Much Sugar in Drinks Marketed to Kids

Report Suggests That Many Drinks That Sound Healthy Have Lots of Sugar and Calories It's no surprise that many sodas have a lot of sugar. What may be more surprising is that many fruit drinks, often billed as healthier alternatives, are often loaded with close to the same amount of sugar and calories. That is one of the findings of a new report from Yale University. The report, being presented today at the American Public Health association annual meeting in Washington, D.C., also finds that many beverage companies are marketing their drinks to kids and teens despite a promise to stop. The American Beverage Association, an industry trade group, takes issue with the new findings. It says the beverage companies have taken many positive steps to protect children's health, including advertising only certain types of drinks on programming to children 12 and under. Calories in Drinks Researchers from Yale University's Rudd Center for Food Policy and Obesity lo

How to Get Your Omega-3s Without Taking Fish Oil

A California lawsuit claiming that fish oil capsules are contaminated with PCBs -- banned chemicals that have been linked to cancer and birth defects -- is producing news stories right out of a blockbuster horror movie. We wouldn't blame you if headlines like Fish Oil Takers Beware inspire you to trash your capsules and give up on these good fats. But take a breath. The last thing we want is for the news media to come between you and your omega-3s. These healthy fats -- found in salmon and trout (the only fish with plentiful omega-3s in the United States), fish oil capsules, and a few other superfoods -- are just too important. They're already credited with protecting hearts against deadly offbeat rhythms, lowering depression risk, cooling inflammation, and helping babies grow healthy brains. Now, omega-3s are also showing promise for encouraging weight loss and discouraging belly fat. So what's up with the lawsuit? A California group tested 10 types of fish

Study: 'Thyroid Support' Supplements May Be Risky

Researchers Say Supplements Contain 'Significant' Amounts of Thyroid Hormone Nine out of 10 "thyroid support" pills tested by Mayo Clinic researchers contain "risky" levels of thyroid hormones. A wide range of supplements that claim to support or improve thyroid function are available online and in retail stores. Some list only herbs as ingredients. Others are capsules filled with dried, ground-up thyroid gland from pigs or cows. People take the supplements because they may feel tired, or for unexplained weight gain -- symptoms they interpret as a sign their bodies are making too little thyroid hormone. When a number of his patients told him they were taking the supplements, endocrinologist Victor Bernet, MD, of the Mayo Clinic, Jacksonville, Fla., became curious. Might they contain the same thyroid hormone as Levothroid, Levoxyl, Synthroid, Unithroid and other prescription drugs used to treat thyroid hormone deficiency? Yes, Bernet says

Binge Eating Often Overlooked in Men

Researchers Say Men Are Often Not Included in Studies About Binge Eating Eating disorders such as anorexia and bulimia are more common among women than men. Binge eating, however, occurs at similar rates among both sexes. Yet men are rarely included in research studies on binge eating and its consequences and treatments, a study shows. The researchers analyzed data from 21,743 men and 24,608 women who participated in a health risk self- assessment. Binge eating in the past month was reported by 7.5% of men and 11.19% of women. The study is published in the International Journal of Eating Disorders . Binge eating disorder is marked by: Frequent episodes of eating large amounts of food in short periods of time Feeling like you have no control over your eating Eating when not hungry Eating in secret Many people feel ashamed and/or disgusted by their binge eating. Health Risks of Binge Eating There are serious health risks associated with binge eating. These includ

Blood Pressure Drugs at Bedtime May Cut Heart Risk

Study Suggests Benefits to Taking Blood Pressure Drugs Before Going to Sleep Taking at least one blood pressure medicine at bedtime cuts the risk of heart problems, according to new research. The study also shows that participants taking at least one blood pressure pill at bedtime had lower blood pressure while asleep. Earlier studies have suggested that bedtime dosing of at least one blood pressure medication may help control blood pressure. But the new study is believed to be the first to look at whether the timing makes a difference in terms of heart attacks, strokes, and death. Ramon C. Hermida, PhD, director of the bioengineering and chronobiology labs at the University of Vigo in Spain, studied 661 people with both high blood pressure and chronic kidney disease. "Taking blood-pressure-lowering medication at bedtime, compared to [taking] all medication upon awakening, not only improved blood pressure control, but significantly reduced the risk of card

Practice Doesn't Always Make Perfect, Study Suggests

Practice is an essential part of gaining excellence in a specific skill, but to become truly great other qualities must come into play, such as IQ or working memory, according to researchers who studied how practice affects the success of chess players. For the study, published in the October issue of Current Directions in Psychological Science , the researchers also considered earlier research and noted that practicing harder or longer doesn't compensate for the lack of other important traits relevant to a certain activity. The study authors pointed out that there is a theory that people will do better in areas such as sports, music and chess if they practice more. "But the thing is, of the people that achieved the master level, there are people that achieved it in 3,000 hours. Other people did, like, 30,000 hours and achieved the same level. And there are even people that practiced more than 30,000 hours and didn't achieve this," Guillermo

Top 10 surprising sex stats

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  The world is full of numbers, and full of sex for that matter. When it comes to intimacy, it’s generally all about the facts of life, not facts and figures (apart from the naked kind!). So you may be surprised to find out the following sex statistics as often these matters don’t make it out of the bedroom. We’ve peeled the sheets on 10 of the most surprising sex figures. What’s your number? According to a Durex survey, men across the globe have had an average of 13 sexual partners throughout their lifetime, while women have had seven. Guys and girls often shy away from honesty when it comes to discussing their number; too low and they fear embarrassment, too high and they face being judged. But there’s never going to be a happy medium, as a Cosmopolitan survey found. According to the survey just 66 per cent of people are content with their ‘number’, while 22 per cent wish they’d slept with less people and 12 per cent would have liked to have slept with more. Pop you

Brain Scans Support Findings That IQ Can Rise or Fall Significantly During Adolescence

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  IQ, the standard measure of intelligence, can increase or fall significantly during our teenage years, according to research funded by the Wellcome Trust, and these changes are associated with changes to the structure of our brains. The findings may have implications for testing and streaming of children during their school years. Across our lifetime, our intellectual ability is considered to be stable, with intelligence quotient (IQ) scores taken at one point in time used to predict educational achievement and employment prospects later in life. However, in a study published October 20 in the journal Nature , researchers at the Wellcome Trust Centre for Neuroimaging at UCL (University College London) and the Centre for Educational Neuroscience show for the first time that, in fact, our IQ is not constant. The researchers, led by Professor Cathy Price, tested 33 healthy adolescents in 2004 when they were between the ages of 12 and 16 years. They then repeated the

Radiation Plus Surgery Cuts Risk of Breast Cancer Return

Study Shows Benefits of Adding Radiation Therapy to Breast-Conserving Surgery Women with early breast cancer often consider breast-conserving surgery in which a doctor removes the tumor but spares the rest of the breast. But they may worry that their cancer is more likely to come back if they don't remove the entire breast. New research shows that adding radiation therapy to breast-conserving surgery halves the chance that cancer will come back and reduces the risk of dying from breast cancer, when compared to the breast-conserving surgery alone. The study is published in  The Lancet . Breast cancer experts tell WebMD that the new findings should provide some peace of mind for women with early breast cancer who choose breast-conserving surgery plus radiation over mastectomy -- the complete removal of the breast or breasts. In 2011, an estimated 230,480 women will be diagnosed with breast cancer, according to the American Cancer Society. About 39,520 women will die from the dise

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