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91色情片

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.

Cataract surgery

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Older people who get cataracts removed have lower dementia risk

People who have cataracts can reduce their risk of developing dementia by about 30 per cent by undergoing surgery to restore their sight, although it鈥檚 not clear why

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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

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

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A health worker holds a vial of the Pfizer/BioNTech vaccine

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

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A road sign in Buckinghamshire, UK, in mid-November

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Covid booster shots are pushing protection to unexpected heights

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Mosquito sits on human

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A single vaccine could protect against many mosquito-borne diseases

A vaccine that changes the way our body responds to mosquito bites could protect us from diseases the insects carry, and also seems to make mosquitoes lay fewer eggs

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NHS England to test Netflix-style subscriptions for antibiotics

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One in 10 US Black men put in solitary confinement before turning 32

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Omicron: How dangerous is the new variant first found in South Africa?

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Probiotics may prevent bacterial infection of the blood in mice

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