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vegan activists in Toronto

Health

Our Veganuary study is just the latest self-experiment

When you want to investigate the impact of giving up alcohol or meat and dairy, you sometimes need to become a lab rat. 51�� staff are always happy to oblige

Leader

The global failure to push PrEP is hindering the fight against HIV

Health

The global failure to push PrEP is hindering the fight against HIV

Comment

Metallic hydrogen would be the ultimate fuel - if we can make it

Technology

Metallic hydrogen would be the ultimate fuel - if we can make it

Features

Roasted sweet potatoes in a pan

Health

Going vegan for January? Find out how much difference it really makes

Features

Plectrocebus parecis monkey

Life

Monkeys hiding on a plateau in the Amazon turn out to be new species

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Adult mountain gorilla

Health

How a Ugandan vet saved hundreds of gorillas by treating human disease

Regulars

transparent solar cell

Technology

Punching holes in solar cells turns them into transparent windows

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Don't miss: knotty sculptures, deadly diseases and molecular machines

Technology

Don't miss: knotty sculptures, deadly diseases and molecular machines

Culture

Shot of a young woman suffering from stomach cramps in her bedroom

Health

Some women feel fetal kicks years after they've given birth

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Illustration on the ketogenic diet (or keto), low carbohydrate diet, composed mainly of high-fat foods.

Health

Eating a keto diet may give some protection against the flu

Giving mice a diet with lots of fat and few carbohydrates seemed to boost certain immune cells, which protected them from the flu

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Health

Eating tiny nutrient particles could be better than health supplements

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Life

Huge mysterious ape Gigantopithecus was a distant cousin of orangutans

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Environment

Tackling emissions from heavy industry is key to fixing climate change

Leader

Humans

The Tenth Muse review: A story in which the women count

Culture