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Discover the latest health news, scientific discoveries and big ideas about the human body and treating diseases, covid-19, diet, fitness, exercise, wellness and how to live a healthy life.

Scanning electron micrograph of Lactobacillus reuteri. Lactobacillus reuteri, a probiotic bacterium

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Rheumatoid arthritis could be treated by eating probiotic bacteria

Experiments in rats hint that an immune-suppressing drug that can be taken by eating a probiotic may relieve symptoms of rheumatoid arthritis more effectively than injections

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Woman is standing on bathroom scales with happy smiling face on display, over colored background, top view of feet. Weight measurement and control. Concept of healthy lifestyle, dieting and fitness

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Weight loss advice isn’t based on good evidence

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Beyond tired: Why fatigue sets in and how to tackle it

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ÎçÒ¹¸£Àû1000¼¯ºÏ worker giving a vaccine

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Vaccinations and past infections reduce risk of spreading covid-19

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A sleeping man and woman in bed

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Some doses of blue light from screens may not affect your sleep

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2009 Margaret Williams, PhD; Claressa Lucas, PhD;Tatiana Travis, BS Under a moderately-high magnification of 6500X, this colorized scanning electron micrograph (SEM) depicted a grouping of Gram-negative Legionella pneumophila bacteria. Please see PHIL 11092 through 11140 for additional SEMs of these organisms, specifically PHIL 11121 for a black and white version of this image. You?ll note that a number of these bacteria seem to display an elongated-rod morphology. L. pneumophila are known to most frequently exhibit this configuration when grown in broth, however, they can also elongate when plate-grown cells age, as it was in this case, especially when they?ve been refrigerated. The usual L. pneumophila morphology consists of stout, ?fat? bacilli, which is the case for the vast majority of the organisms depicted here. These bacteria originated on a 1 week-old culture plate (+/- 1 day), which had incubated a single colony, at 37?C upon a buffered charcoal yeast extract (BCYE) medium with no antibiotics.

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Legionnaires’ disease may be cause of mystery pneumonia in Argentina

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In some parts of the world artificial trans fats are added to products like pastries to extend their shelf life at a low cost, but they have been linked to heart disease

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Denmark’s ban of artificial trans fats saved 1200 lives over 16 years

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X-rays have diagnosed nine people with pneumonia of an unknown origin in the Tucumán province of northwestern Argentina

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What we know about the mysterious pneumonia in Argentina

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A vial of the Pfizer-BioNTech Covid-19 vaccine at a clinic inside Trinity Evangelic Lutheran Church in Lansdale, Pennsylvania, U.S, on Tuesday, Apr. 5, 2022. U.S. regulators cleared second booster??doses??of Covid-19 vaccine from??Moderna Inc.??and the partnership of??Pfizer Inc.??and??BioNTech SE for adults 50 and older, making millions more people eligible for the shots as concern grows about a potential new wave of infections. Photographer: Hannah Beier/Bloomberg via Getty Images

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US authorises the use of dual-variant covid-19 vaccine boosters

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An artificial intelligence could gauge how much pain a laboratory mouse is in based on its grimaces, potentially aiding the development of pain-relieving drugs

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AI that can see pain in a mouse’s face could aid drug development

A new artificial intelligence that monitors mice grimaces to score their pain from 0 to 8 may help researchers judge the effectiveness of a new pain-relieving treatment

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There are thousands more UK deaths than usual and we don’t know why

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Outdated research on HRT is letting people down

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Scientists home in on genetic causes of uncombable hair syndrome

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Should you take HRT? Here’s how to think clearly about the risks

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