Lifestyle « Weekly Gravy

New research suggests there is no perfume a man loves more than the scent of a fertile woman. Researchers in Switzerland determined that women who are the “fittest” for reproduction have a distinctive scent that makes them particularly appealing to men. “Women with high estrogen and low progesterone levels are most attractive to men in an olfactory sense,” said study leader Daria Knoch, from the social psychology and social neuroscience department at the University of Bern. Knoch added that these hormone levels signal high fertility, suggesting that men are more attracted to women who can reproduce successfully. The study involved 28 women and 57 men. The women were asked to follow strict guidelines to isolate their scent and minimize any outside influence from things like detergents, soaps, alcohol or spicy foods. The women were also told to avoid hormonal contraceptives, to sleep alone and use unscented products during the study period. When the women were most fertile, they collected their scent overnight by placing cotton pads in their armpits. The men included in the study were asked to sniff these cotton pads in a lab and rate their smell on a scale of 0 to 100. The researchers also collected saliva samples from the women to measure their hormone levels. The investigators also considered other factors that could influence a woman’s scent, including the stress… read on >

Your parents’ jobs likely had a strong influence on what you do for a living, according to a study that questions the belief in social mobility in the United States. “A lot of Americans think the U.S. has more social mobility than other western industrialized countries. This makes it abundantly clear that we have less,” said researcher Michael Hout, a sociology professor at New York University. He analyzed national data gathered between 1994 and 2016. Taking pay and education into account, occupations were given a socioeconomic score on a 100-point scale, ranging from 9 (shoe shiner) to 53 (flight attendant) to 93 (surgeon). “The underlying idea is that some occupations are desirable and others less so,” Hout said in a university news release. He found there was a good chance that children would have similarly ranked occupations as their parents. For example, half the children of parents in top-ranked occupations now have jobs with a score of 76 or higher, while half the children of parents in bottom-ranked occupations now have jobs that score 28 or less. “Your circumstances at birth — specifically, what your parents do for a living — are an even bigger factor in how far you get in life than we had previously realized,” Hout said. “Generations of Americans considered the United States to be a land of opportunity. This research… read on >

If you’re happy and you know it, so will a goat. New research suggests that goats can read people’s facial expressions and prefer those who appear happy. The study included 20 goats that were shown pairs of images of the same person’s face with happy or angry expressions. The goats were more likely to interact with the happy images, approaching them and exploring them with their snouts. This was particularly true when the happy faces were placed on the right of the test arena, suggesting that goats use the left hemisphere of their brains to process positive emotion, according to the researchers. The study was led by Queen Mary University of London researchers and was published Aug. 28 in the journal Royal Society Open Science. “The study has important implications for how we interact with livestock and other species, because the abilities of animals to perceive human emotions might be widespread and not just limited to pets,” said Alan McElligott, who led the study. He is now based at the University of Roehampton in London. The study’s first author, Christian Nawroth, is now at Leibniz Institute for Farm Animal Biology in Dummerstorf, Germany. “We already knew that goats are very attuned to human body language, but we did not know how they react to different human emotional expressions, such as anger and happiness,” Nawroth said… read on >

Do you get way too involved when following sports events? Whether it’s the World Series, the Super Bowl or the Olympics, it’s important to draw a line between being a fan and being a fanatic … so your actions don’t spiral out of control. Rooting for your favorite team is one thing. But researchers from the University of Arkansas found that overly involved sports fans are more likely to engage in unhealthy lifestyle behaviors — such as too much food and alcohol — than non-sports fans. This can increase their risk for heart disease, stroke, cancer, diabetes and even early death. One of the first health problems is often a rise in BMI or body mass index, a ratio of weight to height. This results from eating a high-fat diet with a lot of fast foods, fewer vegetables and whole grains, and too many alcoholic beverages. High-profile football game days, for instance, are among the heaviest days for alcohol consumption, on a par with New Year’s Eve. Diehard sports fans often feel like they must drink during “big games” — and in doing so may become belligerent, arguing over game plays and refs’ calls, as well as with fans of opposing teams. This behavior has social disadvantages, too, leading to the potential loss of friends and alienating co-workers, depending on whom you’re with. While being… read on >

You’ve probably heard about the high-carb diet and the low-carb diet, but a new study suggests a moderate-carb diet could be the key to longevity. Researchers followed more than 15,000 people in the United States for a median of 25 years and found that low-carb diets (fewer than 40 percent of calories from carbohydrates) and high-carb diets (more than 70 percent of calories) were associated with an increased risk of premature death. Moderate consumption of carbohydrates (50 to 55 percent of calories) was associated with the lowest risk of early death. “This work provides the most comprehensive study of carbohydrate intake that has been done to date, and helps us better understand the relationship between the specific components of diet and long-term health,” said senior study author Dr. Scott Solomon, of Brigham and Women’s Hospital and Harvard Medical School in Boston. The researchers estimated that from age 50, people eating a moderate-carb diet would live another 33 years, four years longer than those with very low carb consumption, and one year longer than those with high carb consumption. The investigators also found that all low-carb diets may not be equal. Eating more animal-based proteins and fats from foods like beef, lamb, pork, chicken and cheese instead of carbohydrates was associated with a greater risk of early death, while eating more plant-based proteins and fats from… read on >

As a tool to reduce the public health toll of drinking, higher taxes on alcohol get the most bang for the buck, a new study finds. Worldwide, more than 4 percent of diseases and 5 percent of deaths are directly linked with alcohol, previous research suggests. In this study, researchers looked at data from 16 countries to find out which of five alcohol-control strategies would be most cost-effective in reducing alcohol-related harm and deaths. Their conclusion: A 50 percent increase in alcohol excise taxes (those included in the price) would cost less than $100 for each healthy year of life gained in the overall population. And it would add 500 healthy years of life for every 1 million people, the researchers said. Such a tax increase would be pennies per drink, according to the study published Aug. 9 in the Journal of Studies on Alcohol and Drugs. “Tax increases may not sound the most attractive of policy options but are the single most cost-effective way of diminishing demand and reigning back consumption,” lead researcher Dan Chisholm said in a journal news release. Chisholm is a program manager for mental health with the World Health Organization in Copenhagen, Denmark. Previous studies showed that state excise taxes in the United States average 3 cents for a 12-ounce beer or 5-ounce glass of wine and 5 cents for… read on >

If you want to be happier, try having meaningful conversations. A new study finds that quality conversation is associated with greater happiness, while small talk has no effect on mental state. The results were true for both introverts and extroverts. The findings from the study of 486 people were published recently in the journal Psychological Science. “We define small talk as a conversation where the two conversation partners walk away still knowing equally as much — or little — about each other and nothing else,” said study co-author Matthias Mehl, a professor of psychology at the University of Arizona. “In substantive conversation, there is real, meaningful information exchanged. Importantly, it could be about any topic — politics, relationships, the weather — it just needs to be at a more-than-trivial level of depth,” Mehl said in a university news release. It’s not clear whether quality conversations actually make people happier, or if happier people are more likely to have quality conversations. And the study didn’t prove cause and effect, so that’s a question for future research. Still, “I would like to experimentally ‘prescribe’ people a few more substantive conversations and see whether that does something to their happiness,” Mehl said. More information Mental Health America outlines how to live your life well.

There’s another study suggesting that the vitamin and mineral supplements bought by millions of Americans do nothing to stave off heart disease. This time, the finding stems from an analysis of 18 studies conducted between 1970 and 2016. Each one looked at how vitamins and mineral supplements — which are not reviewed by the U.S. Food and Drug Administration for either safety or effectiveness — affect heart health. After tracking more than 2 million participants for an average of 12 years, the studies came up with a clear conclusion: they don’t. Still, “people tend to prefer a quick and easy solution, such as taking a pill, rather than the more effortful method to prevent cardiovascular disease,” said study author Dr. Joonseok Kim. “Simply put, multivitamins and mineral supplements do not improve cardiovascular health outcomes, so [they] should not be taken for that purpose,” added Kim. He’s an assistant professor of medicine at the University of Alabama at Birmingham’s division of cardiovascular disease. The Council for Responsible Nutrition, a trade association representing supplement makers, stressed that the products are meant as nutritional aids only, not as a means of preventing or treating illness. “CRN stresses that multivitamins fill nutrient gaps in our less-than-perfect diets and support a host of other physiological functions,” senior vice president Duffy MacKay said in a statement. “They are not intended to… read on >

It can happen when you’re traveling on business, running late to an appointment, or are simply running out of time to make dinner. You’re facing fast food or no food. Use these tips to make the most of this meal. Start by looking for the lowest calorie selections. Some restaurants list the calories and fat content on their menu board. If not, you can do a quick search of its website on your smartphone. According to U.S. Food and Drug Administration mandates, 2018 is the year that calorie labeling is required for restaurants and similar food establishments that have 20 or more locations. The goal is to make it easy to know what you’re getting in every menu item. Of course, you don’t necessarily want to choose food by calories alone. Go for lean proteins, like grilled chicken or meat that you can see, not hidden under breading or tucked into a sealed wrap. Have it on a salad rather than a bun, and skip fatty and sugary dressings. Instead, drizzle on oil and vinegar, if available, or use mustard. If you’re limited to a sandwich, opt for a whole-wheat wrap, or eat only half the bread. Add lettuce, tomatoes and other vegetables, but stay away from toppings like cheese and special sauces. If there’s no fruit available, fat-free yogurt or frozen yogurt is a… read on >

Insomnia affects up to 15 percent of Americans, but sleeping pills aren’t the only — or the best — answer. A good sleep routine, exercise and mindfulness are all options to get the restorative sleep you need. Set up a daily sleep pattern by going to bed at the same time each night and waking up at the same time each morning. Yes, even on the weekends. Keep your bedroom peaceful, dark and on the cool side. Take out all electronics, and stop using them at least one hour before you turn in. They emit a type of light that interferes with your natural body rhythms, prompting you to stay alert when you should be winding down. Exercising vigorously in the morning leads to better sleep at night. But if your only free time is later in the day, such workouts don’t seem to interfere with sleep as previously thought. Stubborn sleeplessness may respond to mindfulness meditation, which can focus specifically on insomnia or stress reduction. Mindfulness techniques can target the thought patterns that perpetuate insomnia. According to research, working with a therapist and practicing meditation at home for 30 to 45 minutes nearly every day helps people get better sleep. And there are also self-help books available if you want to try it on your own. When these techniques aren’t enough to overcome insomnia… read on >