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

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

HEALTH
HEALTH

Vaccinations and past infections reduce risk of spreading covid-19

HEALTH

Some screen use before bedtime might be OK for your sleep after all

LATEST IN HEALTH

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

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

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.

Legionnaires’ disease may be cause of mystery pneumonia in Argentina

^BHormone replacement therapy.^b Close-up of Hormone Replacement Therapy (HRT) pills in a circular dispenser. HRT pills are synthetic hormones used to treat menopausal women. They counteract the hormone deficiency that occurs at menopause. These pills contain oestrogen, and often progestogen, drugs. HRT helps to prevent ^Iosteoporosis,^i ^Iatherosclerosis^i and ^Iatrophic vaginitis^i (where the vagina becomes thin and dry). Pills are taken daily on a monthly basis to coincide with the menstrual cycle. Adverse effects include nausea, tenderness of the breasts, fluid retention and leg cramps.

过时的荷尔蒙替代疗法的研究让人失望至极

Leader

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

What we know about the mysterious pneumonia in Argentina

NHS ambulances at a hospital in London

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

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

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

HEALTH IN DEPTH

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

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

Revealing the hidden impact of whole-genome sequencing for newborns

Revealing the hidden impact of whole-genome sequencing for newborns

Aerial image showing swirling water patterns at a waste management facility, Arizona, United States of America

The secrets in our sewers helping protect us from infectious diseases

Illustration of woman sat on musical scale notation

安静的力量：沉默的身心健康益处

How kids are winning the fight against dengue fever in a Rio favela

How kids are winning the fight against dengue fever in a Rio favela

The expression of various genes and proteins (white, red and green) in neurons among mouse brain cells (blue)

脑分子可能会让我们回忆起美好或坏的记忆

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