North America
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New blood group link to COVID risk
A major blood group gene is closely linked to the risk of disease from COVID-19 infection, according to a new analysis. Read more
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Emphasise personal benefits of COVID-19 vaccine’
Emphasising the personal benefits of the COVID-19 vaccine is the best way to persuade those who resist the injection, according to a new study. Read more
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Question mark over sleep medication benefits
Taking sleep medications does not bring a significant improvement in rates of disturbance after two years, according to study reported today. Read more
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Family intestinal polyps link to colorectal cancer
A new link has been found between colorectal polyps in close relatives and individual risk of colorectal cancer. Read more
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No clear subtypes for Parkinson’s disease
Experts have questioned attempts to cluster cases of Parkinson’s disease into subtypes. Read more
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Face mask quandary for pandemic fitness
Face masks have limited exercise capacity – just as people needed to get fitter during the pandemic, according to studies published today. Read more
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Sun but not vitamin D may reduce COVID risk
Exposure to sun may have helped reduce mortality from COVID-19 – but vitamin D is probably not the explanation, according to a new UK study published today. Read more
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Mitochondria mutations that may combat cancer
Mitochondrial DNA mutations found in cancer tumours are linked to improved chances of survival, researchers have found. Read more
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Stress in brain linked to ‘broken heart’ syndrome
Increased brain activity in the brain, brought on by stressful events, could increase the risk of the rare “broken heart” syndrome. Read more
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HIV immune population found in central Africa
Thousands of people in central Africa may have immunity to HIV infection, it was announced last night in a discovery that researchers say will open the way to new treatments. Read more