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A child in Seattle, Washington, receives a chickenpox vaccine in 2019. The US, among other countries, offers a routine chickenpox vaccine to children, unlike countries such as the UK and Denmark

Health

Should more countries vaccinate children against chickenpox?

Some countries are concerned that vaccinating children could lead to a rise in severe chickenpox cases among older unvaccinated people. But a new study suggests that routinely immunising children could cut the number of people who die from the infection across all ages

Analysis

Environment

The UK is making five big bets in the hope of hitting net zero by 2050

Analysis

Environment

Europe survived its winter energy crisis, but what happens next year?

Analysis

AI Pope images

Technology

Should you be worried that an AI picture of the pope went viral?

Analysis

Technology

Is GPT-4 already showing signs of artificial general intelligence?

Analysis

Health

A common and treatable cause of heart attacks is being overlooked

Analysis

Long freight train in the middle of the desert of California.

Technology

US freight trains are getting longer – is that safe?

Analysis

The Chinese balloon, spotted above Charlotte, North Carolina on 4 February 2023

Technology

Unidentified objects: What's behind the rise in aerial shootdowns?

Analysis

In a trial, some participants were asked to reduce their calorie intake by 25 per cent every day. After two years, they showed signs of slowed biological ageing in one test, but not in others

Health

Does restricting calories slow down ageing? We simply don't know

Analysis

Countries such as the UK, Mexico and South Africa have a tax on sugary drinks

Health

Taxing sugary drinks may not cut obesity as much as headlines claim

A study has suggested that the UK’s 2018 sugar tax prevents 5000 cases of obesity among 10 to 11-year-old girls in England every year, but the picture may be rather more complicated than that

Analysis

Health

The first ever vaccine against RSV could be approved in 2023

Analysis

Health

Lifestyle may affect your dementia risk but the extent is exaggerated

Analysis

Environment

The first breach of 1.5°C will be a temporary but devastating failure

Analysis

Technology

Should schools ban ChatGPT or embrace the technology instead?

Analysis