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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.

Margaret Keenan was vaccinated at University Hospital, Coventry, on 8 December, 2020

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2021 in review: Billions of covid vaccinations given unequally

On 8 December 2020, Margaret Keenan became the first person in the world to receive the Pfizer/BioNTech covid-19 vaccine outside of a clinical trial. 12 months and billions of shots later, several countries are already on a third round of coronavirus vaccinations

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Omicron may spread much more easily at social functions than other variants

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Omicron variant may make Christmas party infection risk much higher

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A technician prepares a sample

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Investigation fails to replicate most cancer biology lab findings

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A health worker speaks with a driver in the drive-thru area of the Testaro Covid-19 mobile testing site outside Richmond Corner shopping center in the Milnerton district of Cape Town, South Africa, on Thursday, Dec. 2, 2021. South Africa announced the discovery of a new variant, later christened omicron, on Nov. 25 as cases began to spike and the strain spread across the globe. Photographer: Dwayne Senior/Bloomberg via Getty Images

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Omicron looks set to cause a huge wave of covid-19 around the world

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Cataract surgery

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Older people who get cataracts removed have lower dementia risk

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Grapes cut open to reveal their seeds

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Grape seed chemical allows mice to live longer by killing aged cells

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ANKARA, TURKEY - MARCH 31 : A worker uses a metal cutter on a rail on Ankaray subway line during night shift in Ankara, Turkey on March 31, 2018. Long rapid transit line of the Ankara Metro system has been operating for 23 years. Ankaray operates approximately 180 runs on daily basis, with 11 cars. Length of the transit line reaches about 9 kilometers. Night shift workers compete against time while cutting old rails and replacing them with the new ones until the first run in the morning. (Photo by Mustafa Kamaci/Anadolu Agency/Getty Images)

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Night-shift workers who eat only in the day may cut diabetes risk

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Vaccinations taking place at Derby's Pakistani Community Centre in April, 2021

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Multigenerational households a factor in covid-19 ethnic disparities

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CARDIFF, WALES - SEPTEMBER 20: Children wear face masks during a maths lesson at Llanishen High School on September 20, 2021 in Cardiff, Wales. All children aged 12 to 15 across the UK will be offered a dose of the Pfizer-BioNTech Covid-19 vaccine. Parental consent will be sought for the schools-based vaccination programme. (Photo by Matthew Horwood/Getty Images)

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Why has the UK been so slow to vaccinate children against covid-19?

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Human heart, 3D coloured computed tomography (CT) scan. This is an oblique side view. The heart is a hollow muscular organ that receives and pumps blood from and around the body through the veins and arteries that branch out from its four internal chambers. The external surface of the heart includes the coronary arteries and veins that supply blood to the heart muscle. This scan includes parts of the heart's major veins and arteries, with the aorta running down right.

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Rare mutation in Old Order Amish people linked to lower heart disease

A genetic mutation may cause lower levels of cholesterol and a blood clotting protein associated with heart disease, and the hope is to design drugs that have the same effect

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How to hack your stress and turn it into a positive force in your life

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Can omicron-specific vaccines arrive fast enough to make a difference?

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Covid booster shots are pushing protection to unexpected heights

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A single vaccine could protect against many mosquito-borne diseases

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