background preloader

Health 1

Facebook Twitter

Passion for vodka kills Russian men in their thousands. Researchers Find Significant Link to Daily Physical Activity, Vascular Health. Sugar Molecule Links Red Meat Consumption and Elevated Cancer Risk in Mice. While people who eat a lot of red meat are known to be at higher risk for certain cancers, other carnivores are not, prompting researchers at the University of California, San Diego School of Medicine to investigate the possible tumor-forming role of a sugar called Neu5Gc, which is naturally found in most mammals but not in humans. In a study published in the Dec. 29 online early edition of the Proceedings of the National Academy of Sciences, the scientists found that feeding Neu5Gc to mice engineered to be deficient in the sugar (like humans) significantly promoted spontaneous cancers.

The study did not involve exposure to carcinogens or artificially inducing cancers, further implicating Neu5Gc as a key link between red meat consumption and cancer. Red meat is rich in Neu5Gc, a non-human sugar found to promote inflammation and cancer progression in rodents. Varki’s team first conducted a systematic survey of common foods. Study co-authors include Annie N. Samraj, Oliver M. Five lifestyle factors are key to cutting risk of dementia, says charity | Society. Lifestyle is responsible for up to 76% of changes in the ageing of the brain, according to Age UK, with key lifestyle changes having the potential to reduce the risk of developing dementia by as much as 36%. Five actions that people can take to maintain brain health include regular physical exercise, a Mediterranean diet, not smoking, drinking in moderation and preventing diabetes, according to an evidence review by the charity.

About 850,000 people in the UK are living with dementia, which will affect one in three people over the age of 65, according to the latest estimates. Physical exercise, such as aerobic, resistance or balance activity, was found to be the most effective way to ward off cognitive decline in healthy older people and to reduce the risk of developing Alzheimer’s disease.

Studies suggested exercising three to five times a week for between 30 minutes and an hour was beneficial, it said. There are more than 100 types and many causes of dementia. What 2,000 Calories Looks Like - NYTimes.com. Yogurt with fruit and nuts (210), toast and jam (85), coffee (2), beef stir-fry and farro (400), diet soda (0), pretzels (220), pear (100), chicken and arugula (490), brussels sprouts and squash (55), water (0), wine (120), cookies (200) Writers, nutritionists, doctors, chefs and Michelle Obama have all been promoting a hot new diet: home-cooked food. “People who cook eat a healthier diet without giving it a thought,” Michael Pollan recently told Mark Bittman, both authors and advocates of the cook-it-yourself diet. “It’s the collapse of home cooking that led directly to the obesity epidemic.” The magic of the diet, its advocates say, is that it doesn’t mean skimping on portions or going without meat, eggs, cheese, alcohol or dessert.

We asked James Briscione, the director of culinary development at the Institute of Culinary Education in New York, to prove it by preparing some examples of a day’s worth of home-cooked meals totaling about 2,000 calories, everything included. Can You Ever Exercise Too Much? Some evidence shows that intense endurance workouts can put stress on the heart—but it's probably temporary. Those who stay abreast of the latest health news are well accustomed to the ever-expanding list of health risks—high-fructose corn syrup, carbs, sitting, etc. But when it comes to exercise, most of the public-health focus is dedicated to identifying the risk factors that are associated with too little exercise, not too much.

That’s simply because most Americans don’t meet the recommended weekly dose of 150 minutes of cardiovascular exercise. So the idea that you can exercise too much, while not completely novel, has traditionally received far less attention in the popular media and scientific literature. Regular physical exercise has been associated with decreased risk of chronic disease, improved cardiovascular health, and longer life. Endurance exercise may set off an existing cardiac condition, but can it cause one? What's Up With That: Stress Could Be Turning Your Hair Gray. Getty Images What's Up With That? Each week, we'll explain the science behind a strange phenomenon that you may be wondering about, or may be hearing about for the first time right here. If you've seen or heard of something you'd like us to explain, send us an email.

View the entire collection. Stories of stress turning hair gray abound in popular culture, from Marie Antoinette’s hair turning white the night before her beheading, to Barack Obama’s rapid first-term graying. But, is there actually a mechanism in your body that translates anxiety into silver locks? Scientists have looked into it, but despite several promising results they haven’t yet nailed down a solid link. Hair color comes from two naturally occurring pigments, called melanins. There are two prevailing hypotheses. The second hypothesis says that your hair gets bleached from within, rather than depigmented.

Scientists have no idea how stress would prematurely trigger either of these processes. Well Workouts. Why do so many people die shovelling snow? 19 November 2014Last updated at 18:09 ET Who, What, Why The Magazine answers the questions behind the news At least two people have died from heart attacks while shovelling snow in Buffalo, New York. Every winter, about 100 people in the US die doing this. Why? A study looking at data from 1990 to 2006 by researchers at the US Nationwide Children's Hospital recorded 1,647 fatalities from cardiac-related injuries associated with shovelling snow. In Canada, these deaths make the news every winter. Cardiologist Barry Franklin, an expert in the hazardous effects of snow removal, believes the number of deaths could be double that.

His team found that when healthy young men shovelled snow, their heart rate and blood pressure increased more than when they exercised on a treadmill. Continue reading the main story The Answer raises blood pressure and heart rate more than normal exercise cold air constricts blood vessels it's an early morning activity when cardiac. A single bout of resistance exercise can enhance episodic memory performance. A School of Psychology, Center for Advanced Brain Imaging, Georgia Institute of Technology, 831 Marietta St NW, Atlanta, GA 30318, USAb School of Applied Physiology, Georgia Institute of Technology, 555 14th St NW, Atlanta, GA 30332, USA Received 18 December 2013, Revised 15 May 2014, Accepted 25 June 2014, Available online 28 September 2014 Choose an option to locate/access this article: Check if you have access through your login credentials or your institution Check access DOI: 10.1016/j.actpsy.2014.06.011 Get rights and content Highlights We investigate the effects of resistance exercise on emotional episodic memory.

We measure physiological state with heart rate, blood pressure, and alpha amylase. We use a knee extension/flexion task for resistance exercise. We find that resistance exercise during consolidation can benefit memory. We find effects of valence based on the physiological response to the exercise. Abstract Acute aerobic exercise can be beneficial to episodic memory. Keywords. 80/20 Body Composition Rule. Salt Doesn’t Cause High Blood Pressure? Here’s What a New Study Says | TIME.

Should We All Take a Bit of Lithium? Photo THE idea of putting a mind-altering drug in the drinking water is the stuff of sci-fi, terrorist plots and totalitarian governments. Considering the outcry that occurred when putting fluoride in the water was first proposed, one can only imagine the furor that would ensue if such a thing were ever suggested. The debate, however, is moot. It’s a done deal.

Mother Nature has already put a psychotropic drug in the drinking water, and that drug is lithium. Lithium is a naturally occurring element, not a molecule like most medications, and it is present in the United States, depending on the geographic area, at concentrations that can range widely, from undetectable to around .170 milligrams per liter. Yet despite the studies demonstrating the benefits of relatively high natural lithium levels present in the drinking water of certain communities, few seem to be aware of its potential.

The scientific story of lithium’s role in and health began unfolding in the 1970s. Dr. Dr. How Antiperspirant Works (And Who It Might Hurt) Coffee benefits: Nap, exercise, test, creativity, alertness, sex. Photo by monkeybusinessimages/iStock/Thinkstock You’re almost done drinking that cup of coffee. Now what? Kevin Roose at Medium follows his cup of joe with a morning run; the coffee, he writes, allows him to “run longer and feel more energized.” He’s not the only one. Health magazine reported on research showing that coffee before a workout improves circulation, lessens pain, improves memory for exercises and routines, and preserves and fuels muscles. And Shape proclaimed that drinking coffee before a workout gives a mental edge and helps burn more fat. All right, that’s settled.

Yes, nap. OK, so. Unless you’d rather have sex (partner permitting). In 2011, researchers discovered that caffeinated female rats were more likely than their drowsy counterparts to seek out sex, which led them (the researchers, not the rats) to conclude that caffeine may make females want to have sex. It’s decided. Unless you’d rather release your inner artiste. All clear. Unless you’re off to take a test. So. Study Reveals that a Trip to the Library Feels the same as a $2,282 pay raise. | Mapachili. A recent study commissioned in the UK has revealed that a trip to the library gives the same stimulational effect as a pay raise – a £1,359 ($ 2,282) raise, to be exact. The study, published by Daniel Fujiwara, Laura Kudrna, and Paul Dolan states that A significant association was “found between frequent library use and reported wellbeing.

Using libraries frequently was valued at £1,359 per person per year for library users, or £113 per person per month.” The study also reveals that participation in the arts and activity in sport have similar effects. “We identify statistically significant associations between cultural and sport engagement and individual wellbeing and a range of other social impacts. Holistic consideration of all identified impacts will help to build a broad narrative on the social impacts of culture and sport,” the authors go on to state.

Few would object to such a revelation. It is certainly not a political issue. Smartphone stress: Are you a victim of 'always on' culture? How the sun sees you. How safe is eating meat? 17 August 2014Last updated at 19:28 ET Dr Michael Mosley ate around 130g of meat a day to research the effects on his body There have been a lot of news reports about the health risks of meat eating, but are they justified? Dr Michael Mosley has been investigating the truth behind the headlines for BBC Horizon. I like eating meat, but what was once an innocent pleasure is now a guilty one. If you believe the headlines, regularly indulging in a steak or a bacon sandwich raises your risk of heart disease and cancer. The threat to health comes not from eating white meat, like chicken, but from red and processed meat.

Despite the negative headlines, on average Brits still eat about 70g of red and processed meat a day, with a quarter of men eating almost twice as much. Continue reading the main story “Start Quote I decided to go on a high-meat diet to see what effects doubling my intake to around 130g a day would have” End Quote I visited numerous experts, finding out what they themselves eat. Blue field entoptic phenomenon. Simulation of the blue field entoptic phenomenon. Note the size of the white dots in relation to the hand. The blue field entoptic phenomenon or Scheerer's phenomenon (after the German ophthalmologist Richard Scheerer, who first drew clinical attention to it in 1924[1]) is the appearance of tiny bright dots (nicknamed blue-sky sprites) moving quickly along squiggly lines in the visual field, especially when looking into bright blue light such as the sky.[2] The dots are short-lived, visible for a second or less, and traveling short distances along seemingly random, curvy paths.

Some of them follow the same path as predecessors. The dots may be elongated along the path like tiny worms. Most people are able to see this phenomenon. Explanation[edit] Ophthalmogram showing blood vessels in front of the retina. Blue field entoptoscopy[edit] In a technique known as blue field entoptoscopy, the effect is used to estimate the blood flow in the retinal capillaries.

See also[edit] Floater. What 2,000 Calories Actually Look Like. US Has Worst Quality of Healthcare Among Industrialized Nations: Study : US&Politics. New culprit identified in metabolic syndrome -- ScienceDaily. A new study suggests uric acid may play a role in causing metabolic syndrome, a cluster of risk factors that increases the risk of heart disease and type 2 diabetes. Uric acid is a normal waste product removed from the body by the kidneys and intestines and released in urine and stool. Elevated levels of uric acid are known to cause gout, an accumulation of the acid in the joints. High levels also are associated with the markers of metabolic syndrome, which is characterized by obesity, high blood pressure, elevated blood sugar and high cholesterol. But it has been unclear whether uric acid itself is causing damage or is simply a byproduct of other processes that lead to dysfunctional metabolism. Published Aug. 7 in Nature Communications, the new research at Washington University School of Medicine in St.

Louis suggests excess uric acid in the blood is no innocent bystander. Rather, it appears to be a culprit in disrupting normal metabolism. Cancer 'tidal wave' on horizon, warns WHO. 4 February 2014Last updated at 01:33 ET By James Gallagher Health and science reporter, BBC News Large numbers of people do not know there is a lot they can do to reduce their exposure to risk The globe is facing a "tidal wave" of cancer, and restrictions on alcohol and sugar need to be considered, say World Health Organization scientists. It predicts the number of cancer cases will reach 24 million a year by 2035, but half could be prevented.

The WHO said there was now a "real need" to focus on cancer prevention by tackling smoking, obesity and drinking. The World Cancer Research Fund said there was an "alarming" level of naivety about diet's role in cancer. Fourteen million people a year are diagnosed with cancer, but that is predicted to increase to 19 million by 2025, 22 million by 2030 and 24 million by 2035. The developing world will bear the brunt of the extra cases. "If we look at the cost of treatment of cancers, it is spiralling out of control, even for the high-income countries. Facebook Use Predicts Declines in Subjective Well-Being in Young Adults. Over 500 million people interact daily with Facebook. Yet, whether Facebook use influences subjective well-being over time is unknown. We addressed this issue using experience-sampling, the most reliable method for measuring in-vivo behavior and psychological experience. We text-messaged people five times per day for two-weeks to examine how Facebook use influences the two components of subjective well-being: how people feel moment-to-moment and how satisfied they are with their lives.

Our results indicate that Facebook use predicts negative shifts on both of these variables over time. The more people used Facebook at one time point, the worse they felt the next time we text-messaged them; the more they used Facebook over two-weeks, the more their life satisfaction levels declined over time. Interacting with other people “directly” did not predict these negative outcomes. Figures Editor: Cédric Sueur, Institut Pluridisciplinaire Hubert Curien, France Copyright: © 2013 Kross et al. How stressed are you? Do you really need to drink eight cups of water a day? Facial Changes Caused by Smoking: A Comparison between Smok... : Plastic and Reconstructive Surgery.

Roar of the rutting stag: why men have deep voices | Science | The Observer. Child bullying victims still suffering at 50 - study. Walking 'cuts breast cancer risk' Exercise 'can be as good as pills' Alzheimer's brain scan detects tau protein. Health kick 'reverses cell ageing' Exercise key to long, happy life. Why is cycling so popular in the Netherlands? FYI: Could I Have Prevented My Nearsightedness If I'd Just Spent More Time Outside As A Kid? Breakfast linked to 'healthy heart' New wonder drug matches and kills all kinds of cancer — human testing starts 2014.

The Near-Mythical Beast That Spread an All-Too-Real Disease. Breast cancer risk 'doubles from working nights' | Society. Dietary Fructose Causes Liver Damage, Primate Study Finds | Medicine. How Much Physical Activity Do You Really Need? Simple Science Fitness. Burn Fat & Build Muscle for Healthy Humans. The Biggest Fast-Food Calorie Bombs | Photos. What is the Best Predictor of Unhappiness? — Priceonomics Blog.

The Cause of Muscle Cramps When You Exercise. The rise of the protein drinks for ordinary people. Don’t Take Your Vitamins. How did stevia get mainstream? Broccoli slows arthritis, researchers think. Blueberries, not fruit juice, cut type-2 diabetes risk. How much sugar do we eat? Water as only mealtime drink 'will combat child obesity'

The hidden dangers of caffeine: How coffee causes exhaustion, fatigue and addiction. Newsbeat - Smartphone overuse may 'damage' eyes, say opticians. How To Improve Eyesight Without Glasses | Natural Vision Improvement. Ignorance of tick-borne Lyme disease 'costing lives' WHO says new coronavirus may be passed person to person. Vitamin C kills drug-resistant TB in lab tests. Sunshine vitamin 'may treat asthma' Diet Soda Habit as Bad for Teeth as Meth Addiction, Study Claims. New music 'rewarding for the brain' What Causes Hearing Loss. New theory on cause of migraine. Neuron growth in children 'leaves no room for memories' Playing Tetris video game 'fixes lazy eye', doctors say.

Happy Father’s Day! The Psychology of Papas. | PsySociety. Sucking on your kid's pacifier: good idea or gross? The babies who nap in sub-zero temperatures. Why Finnish babies sleep in cardboard boxes. Harvard and the Making of the Unabomber - 00.06. Vatican denies Pope Francis performed 'exorcism' Vegetarians 'cut heart risk by 32%'

Sugar, not fat, exposed as deadly villain in obesity epidemic | Society. Many Babies Fed Solid Food Too Soon, C.D.C. Finds. Red meat chemical 'damages heart', say US scientists. This Man Thinks He Never Has to Eat Again. Why Are Thin People Not Fat 1/7. 9 Sneaky Sources of Sugar. BMI: Does the Body Mass Index need fixing? New BMI (New Body Mass Index) Why Exercise Won't Make You Thin. Walk-to-burn-calorie menu 'diet aid' Barefoot running injury concern. From Sloppy Slouchers to Discreet Leaners: What’s Your Desk Posture? - The Drawers. The perils of sitting down: Standing orders. Bad sleep 'dramatically' alters body. Poor sleep linked to heart failure, Norwegian study says. BBC Science - Five things that stop a good night’s sleep. Health - Can you train yourself to get by on less sleep?

Retirement 'harmful to health', study says. Memory weakens but steadies with age, study finds. Your Ancestors Didn’t Sleep Like You - SlumberWise. 'Molecular basis' for jet lag found. 'Afternoon naps' aid children's learning. How much can an extra hour's sleep change you?