A study of 3,300 men and women found that nearly 64 percent of older women who reported hind-foot pain regularly wore high heels, pumps or sandals at some point in their lives.
The study found no connection between foot pain in men and the shoes they wore, largely because they don’t typically wear high heels and spend less time in sandals, the researchers concluded.
“We found an increased risk of hind-foot pain among women who wore shoes, such as high heels or pumps, that lack support and sound structure,” said study team member Alyssa B. Dufour, a graduate student at the Institute of Aging Research of Hebrew Senior Life.
Ignoring the problem.
Humans have been wearing shoes for about 40,000 years. In the past century or so, the consequences have become well-known.
Foot pain is one of the top 20 reasons people ages 65 to 74 visit a physician, the researchers say. About 30 percent of women report the problem, as do about 20 percent of men. Scientists have not known for sure what’s behind the discrepancy, though other studies have hinted at reasons.
People who don’t wear shoes at all have wider feet and a bigger gap between the big toe and the next.
Women who spend a lot of time in high heels wind up with smaller calf muscles. And high heels are known to put excess pressure on the balls of the feet and squeeze the toes together. Over time, the foot can curve inward.
As often is the case, fashion trumps health. Increasingly women are getting cosmetic surgery to shave down the bones of their toes or are getting Botox injections to loosen the muscles pulling on the toe(cosmetic surgery sales have sagged during the recession, though).
Going minimal seems not to be the answer, either.
The new study lumped sandals in with high heels in the “poor footwear” category. And a separate study last year found that wearing flip-flops non-stop alters the way a person walks, leading to problems with the ankile, heel and sole.
Some, including the society for Barefoot Living, claim that going without footwear is the answer. But that’s not practical in much of modern society, critics point out.
The new study puts shoes into the following categories:
*Poor: high heels, pumps, sandals and slipper.
*Average: hard-or rubber-soled shoes and work boots
*Good: athletic and casual sneankers.
“Young women should make careful choices regarding their shoe types in order to potentially avoid hind-foot pain later in life,” Dufour said.
Higher Fiber Intake May Interfere With Ovulation
Women who get the recommended amount of fiber in their diets may have lower estrogen levels and ovulates less often than women who eat less fiber, a new study suggests.
Researchers found that among 250 women ages 18 to 44, those who reported eating the recommended amounts of fiber had the lowest blood levels of estrogen ad other reproductive hormones.
Higher fiber intake, particularly from fruit, was also linked to a higher risk of having anovulatory menstrual cycles — where the ovaries fail to release an egg.
The findings, reported in the American Journal of Clinical Nutrition, do not mean that eating fiber-rich foods is a bad thing.
High-fiber diets are associated with numerous health benefits, including lower risks of heart disease, diabetes, colon cancer and breast cancer. Experts generally recommend that adults get 20 to 35 grams of fiber each day, depending on their calorie intake.
However, the current results do “call into question” whether those recommendations are best for women who are trying to become pregnant, write the researchers, led by Audrey 1. Gaskins of the National Institute of Child Health and Human Development in Rockville, Maryland.
Anovulation can have various causes, including excessive exercise, having either too little or too much body fat, thyroid gland dysfunction and polycystic ovarian syndrome — a hormone disorder that is a common cause of infertility.
Women who are not ovulating regularly often have irregular menstrual periods or none at all. However, some women do continue to have periods.
All of the women in the current study were healthy and having regular menstrual periods. Still, those who reported the highest fiber intake — 22 grams per day or more, in line with general recommendations were more likely to have at least one anovulatory cycle over two months. The researchers gauged anovulation by measuring the women’s reproductive-hormone levels over two menstrual periods.
Of the total menstrual cycles in this group, 22 percent were anovulatory, compared with 7 percent among women with lower fiber intakes.
When the researchers accounted for other factors that could affect ovulation — including body weight, race, exercise levels and calorie intake — high fiber intake itself was linked to a roughly 10-times higher risk of anovulation.
Looking at specific sources of fiber, the researchers also found that fiber from fruit, specifically, was most clearly associated with an ovulation.
The results do not prove that fiber, per se, disrupts some women’s ovulation. However, it is biologically plausible, Gaskins and her colleagues point out.
High-fiber diets, they explain, decrease activity in certain intestinal enzymes, leading to less estrogen re absorption in the colon. Fiber can also cause more estrogen to be excreted from the body in feces.
In line with that, the researchers found that women with the highest fiber intakes generally had the lowest estrogen levels over the course of their menstrual periods. They also had lower levels of other reproductive hormones, including progesterone, luteinizing hormone and follicle stimulating hormone.
The findings, according to Gaskins and her colleagues, raise the possibility that women who are trying to conceive should lower their fiber intake. However, they write, more studies are needed before any recommendations can be made.
Benefits Of Rinsing Sinuses
Rinsing sinuses with a saline solution might have soothing short-term benefits, but it could actually make you more prone to infections in the long run by stripping your nose of critical immune soldiers.
“By washing the nose, we are removing the bad mucus but, unfortunately, we are also removing the good mucus that contains the antimicrobial agents as well,” said Dr. Talal Nsouli, lead author of new research on the issue. “And, by depleting the nose of its immune elements, we expose the patient to more sinus infections.”
Nsouli’s advice is to avoid using nasal saline irrigation on a long-term basis, limiting its use only to when an infection is present. The research was to be presented Sunday in Miami Beach at the annual meeting of the American College of Allergy, Asthma & Immunology.
Dr. Michael 1. Bergstein, senior attending physician at Northern Westchester Hospital Center in Mt. Kisco, N.Y., agreed with Nsouli.
“There’s a blanket of little, hair-like projections called cilia in the nose, and those cilia can be stunned if they’re chronically bathed in hypertonic, which is excess salt, or hypo, which is too-little salt, rinses,” he said. “Do not use nasal saline irrigation as a maintenance because you’ll be altering the natural immune benefit that the sinuses have.”
But Dr. Jordan S. Josephson, a sinus specialist with Lenox Hill Hospital in New York City and author of Sinus Relief Now, offered a different view. “I totally, wholeheartedly disagree with the article,” he said. “I think irrigation is a marvelous thing.”
Though it’s possible for irrigation to wash away protective cells along with the infection, the protective “mucous blanket” of the sinus packages re-forms and goes back to work, he said.
Legions of people, according to the researchers, use nasal saline irrigation to treat sinus infections, despite lack of robust evidence to support its use.
For the study, 68 people irrigated at least twice a day for one year, then discontinued the practice and were followed for the next year.
The rate of sinus infections decreased 62 percent once irrigation was stopped, the study found.
“People who were using nasal sinus irrigation were having an average of eight sinus infections a year,” said Nsouli. “They dropped to three per year.” Nsouli is a clinical professor of pediatrics and allergy/immunology at Georgetown University, School of Medicine and director of Watergate & Burke Allergy & Asthma Centers, in Washington D.C.
“The nasal secretions do contain immune elements that protect patients against infection,” he explained. “Our first-line protection is the mucus that we have.”
What Your Photos Say About You
Those photos you post on Facebook could paint an accurate picture of your personality, new research on first impressions suggests.
And perhaps as expected, the more candid a shot the more nuances of your personality show through.
“In an age dominated by social media where personal photographs are ubiquitous, it becomes important to understand the ways personality is communicated via our appearance,” said study researcher Laura Naumann of Sonoma State University. “The appearance one portrays in his or her photographs has important implications for their professional and social life.”
With this information, there’s always the option of tweaking your image, and thus your personality to the outside world. “If you want potential employers or romantic suitors to see you as a warm and friendly individual, you should post pictures where you smile or are standing in a relaxed pose,” Naumann said.
Scientists have known physical appearance is important for first impressions and that such initial impressionscan be hard to undo, particularly negative ones. Studies have shown judgments made at first glance of a CEOcan predict his or her success. But until now little was known about how well people judged personality based on appearance and what physical factors are most important.
In the new study, 12 observers looked at full-body photos of 123 undergraduate students who they had never met before. Six observers viewed the students in a neutral pose and six saw the same students in a spontaneous pose.
The participants rated each photo on 10 personality traits: extraversion, agreeableness, conscientiousness, emotional stability, openness (open to experience), likability, self-esteem, loneliness, religiosity and political orientation.
To figure out accuracy of the judgments, the researchers compared the results with the posers’ self-ratings and ratings from three close friends.
For the controlled poses, the observers accurately judged extraversion and self-esteem. When participants looked at the naturally expressive shots, which revealed dynamic non-verbal cues, they were nearly spot-on, getting nine out ofthe 10 traits correct (everything but political orientation).
“Extraversion is one of those things that’s probably the easiest trait to judge,” Naumann told LiveScience. “Even without seeing whether someone is smiling or not people can pick that up.”
But when judging likeability, observers got it right on average for 55 percent of the photos with neutral poses and 64 percent of the expressive photos. Similar results were found for agreeableness, with participants judging correctly 45 percent of the time for neutral poses compared with 60 percent in the expressive images.
Women who get the recommended amount of fiber in their diets may have lower estrogen levels and ovulate less often than women who eat less fiber, a new study suggests.
Researchers found that among 250 women ages 18 to 44, those who reported eating the recommended amounts of fiber had the lowest blood levels of estrogen and other reproductive hormones.
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