Does cracking your knuckles cause arthritis?
Have you heard the old wives’ tale that knuckle cracking will enlarge your knuckles? What about the one that cracking your knuckles causes arthritis?
There are many beliefs about this common behavior, but it’s time to debunk the myths about knuckle cracking.
Why do people crack their knuckles?
Harvard Health cites several possible reasons.
“Knuckle cracking is a common behavior enjoyed by many,” said Dr. Robert Shmerling, a rheumatologist and senior faculty editor at Harvard Health.
Poverty is America’s fourth leading cause of death
Poverty is the fourth-greatest cause of death in the United States, according to new research.
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Researchers at the University of California, Riverside estimate that poverty was associated with 183,000 deaths in 2019 among people 15 years and older.
And that’s a conservative estimate, they say, because the year was just prior to the COVID-19 pandemic.
“Poverty kills as much as dementia, accidents, stroke, Alzheimer’s and diabetes,” said David Brady, the study’s lead author and a UCR professor of public policy.
Vaginal swabs more reliable than urine for STI testing
Vaginal sampling should be the initial choice offered to patients undergoing testing for chlamydia, gonorrhea, and/or trichomoniasis, according to a systematic review and meta-analysis published in the March/April issue of the Annals of Family Medicine.
Kristal J. Aaron, Dr.P.H., from the University of Alabama at Birmingham, and colleagues conducted a systematic literature review to identify studies between 1995 and 2021 assessing the diagnostic sensitivity of commercially available assays for vaginal swabs versus urine specimens from women.
The researchers identified 28 eligible articles with 30 comparisons for Chlamydia trachomatis, 16 comparisons for Neisseria gonorrhoeae, and nine comparisons for Trichomonas vaginalis.
Do you live in one of America’s worst cities for dirty air?
Nearly one-third of Americans live in counties with unhealthy air, according to a new report from the American Lung Association.
One in three, or 120 million, people lives with unhealthy levels of ozone or particle pollution, the “State of the Air” report says.
While air quality has improved overall, there are major differences between Eastern and Western states and in air pollution exposure for white people and people of color, according to the association.
“The good news is that ozone pollution has generally improved across the nation, thanks in large part to the success of the Clean Air Act.”
How to get rid of bad breath
About 1 in 4 people worldwide experience bad breath, according to the Cleveland Clinic — but that doesn’t mean you’re stuck with it.
Discover the most common causes of bad breath (halitosis) and some tried and true ways to get rid of it, for good.
“Bad breath can have various causes, including diet, gastroesophageal reflux [GERD] and poor oral hygiene,” explained Cleveland Clinic dental hygienist Tenika Patterson, in a blog.
The Cleveland Clinic notes that the majority of bad breath cases are due to inadequate brushing, flossing and dental cleanings.
Daytime napping tied to incident atrial fibrillation risk
Daytime napping for more than 30 minutes is significantly associated with the risk for developing atrial fibrillation (AF), according to a study presented at the annual congress of the European Association of Preventive Cardiology, held from April 13 to 15 in Malaga, Spain.
Jesus Diaz-Gutierrez, M.D., of the Juan Ramon Jimenez University Hospital in Huelva, Spain, and colleagues examined the association between daytime napping and the incidence of AF. The analysis included 20,348 participants, free of AF at baseline, who were followed for a median time of 13.8 years.
The researchers found that compared with participants with short daytime napping (<30 minutes/day), those who slept ≥30 minutes/day exhibited a significant increased risk for incident AF.
Scientists get closer to a “universal” flu vaccine
Researchers are reporting progress on the path to a “universal” flu vaccine — one that would battle all strains of the virus and give the world a weapon against future flu pandemics.
In an early clinical trial, U.S. government scientists found that their experimental flu vaccine was able to coax recipients’ immune systems to produce “cross-reactive” antibodies. That is, they made antibodies against many strains of influenza type A — one of the two major groups of the virus.
Experts called the findings promising, in that the vaccine did exactly what you’d want in this early phase of testing.
However, it has not yet been shown to actually protect people from the flu.
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