Prof Didier Raoult, who has been prescribing hydroxychloroquine to Covid-19 patients for several months, attacked the Lancet study on its use as “a completely delirious fantasy”. Photograph: Gerard Julien/AFP

France on Wednesday banned physicians from prescribing hydroxychloroquine for the treatment of Covid-19, five days after the British medical journal t(...)

 Acquanetta Garth wipes down her surroundings, as a precaution against the coronavirus, on her flight. File Photograph: Alyssa Schukar/The New York Times

Coronavirus can live for three days on some surfaces, like plastic and steel, new research suggests. Experts say the risk of consumers getting infecte(...)

The aim of the ketogenic diet is to enter a state of ketosis through fat metabolism. In that state, the body uses primarily fat for energy instead of carbohydrates; fats can then be converted into ketones to fuel the body. Photograph: iStock

A recent survey of registered dietitians named the low-carbohydrate keto diet yet again as the most popular diet in the United States. In Ireland, it (...)

Not until the spread of light bulbs 150 years ago did bright light seriously disrupt the boundaries of night and day. Illustration: Michael Viney

Last January, deep in the polar night, some 70 academics, researchers and artists gathered for a conference on Svalbard, Norway’s remote Arctic island(...)

Participants at a traditional pow wow celebration in Pine Ridge Reservation last month. Photograph: Stephen Starr

There was a time in the late 1980s, says Darla Black, when the safest place for her at night was locked in a prison cell. Her partner at the time was (...)

Esaïe Prickett, wearing Google Glass, with his mother, Rose, and brother Morgan at their home. Photograph: Cayce Clifford/The New York Times

When Esaïe Prickett sat down in the living room with his mother, father and four older brothers, he was the only one wearing Google Glass. As Esaïe, (...)

The importance of physician empathy should not be underestimated. Photograph: iStock

In 1811, the English novelist Frances “Fanny” Burney (1752-1840) ate breakfast at her Paris home before undergoing a mastectomy in her bedroom . . . w(...)

Will your children scoff all their Easter eggs in one day or space out their consumption? Photograph: iStock.

Will your children dive into their chocolate Easter eggs this Sunday and scoff the lot before bedtime? Or will they – on your insistence perhaps – sp(...)

Instagram aesthetic: Alicja Puk injects a client at her clinic, in Blanchardstown in Dublin. Photograph: Alan Betson

The filtered, full-lipped look has exploded in global popularity, and the cosmetic procedures that create it have too. But a largely unregulated in(...)

Almost 200 babies a year suffer lack of oxygen to the brain during birth, resulting in death or disability Photograph: Photodisc

Scientists in Cork have developed a technique for the early detection of birth-related brain injury, which affects hundreds of babies in Ireland every(...)

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