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diet and exercise

Protesters hold placards during a

Earth

2022: The year of rolling polycrisis, but with a few glimmers of hope

This year, there were the lows of Russia's invasion of Ukraine, soaring prices and extreme weather, and the highs of an accelerating shift to green energy and space wonders from the James Webb Space Telescope

Leader

An electron micrograph of an HIV virus particle (red/yellow) budding from the plasma membrane of an infected T cell (blue), which make up part of the immune system

Health

Vaccine prompts HIV antibodies in 97 per cent of people in small study

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How postbiotics could boost your health and even help reverse ageing

Health

How postbiotics could boost your health and even help reverse ageing

Features

A small pile of cocaine

Chemistry

Genetically modified tobacco plant produces cocaine in its leaves

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A baby in a neonatal intensive care unit is held by its mother

Health

Immediate skin-to-skin contact advised for premature newborns by WHO

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Illustration of a tear in an anterior cruciate ligament

Health

Many anterior cruciate ligament knee injuries can heal without surgery

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2K6KYM8 Protesters hold an

Environment

Dismissing environmentalists with an 'anti-growth' label is wrong

Comment

Orange bottles on an orange background

Health

The truth about the foods said to boost your immune system

Features

The bacterium Hafnia alvei produces a molecule that mimics an appetite-reducing hormone

Health

Appetite-suppressing probiotic helps overweight people lose weight

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Health

Why we urgently need answers about artificial sweeteners and health

Artificial sweeteners have been shown to help people maintain their weight and improve their health, but they have also been linked to conditions such as diabetes and heart disease. Nutrition scientist Allison Sylvetsky has been unpicking the evidence

Features

Health

Turmeric supplements have been linked to liver damage in five people

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Health

Personal lubricant made from cow mucus may protect against HIV

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Society

US pardons people convicted for marijuana possession under federal law

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Health

Eating in a 10-hour window may reduce the health harms of shift work

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