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diet and exercise

Women at the gym

Health

Paying people to return to the gym is best way to incentivise exercise

A study of different incentives found that paying people a few cents for gym visits, with a little extra if they returned after skipping a workout, was the most effective

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Orcas

Life

Orcas are spreading further into the Arctic Ocean as sea ice melts

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Risso's dolphin

Life

Risso’s dolphins have invented rapid spin-dive technique for hunting

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Uranium, a chemical element with a U symbol and an atomic mass equal to 238 u, has an atomic number 92

Technology

Material inspired by blood vessels can extract uranium from seawater

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2AKEMKH Amazon river dolphin (Inia geoffrensis) Rio Negro, Amazonas, Brazil.

Life

The Amazon's pink river dolphin population is in free fall

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COP26: New alliance commits to ending oil and gas extraction

Environment

COP26: New alliance commits to ending oil and gas extraction

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Sweets

Environment

Buying fewer snacks and ready meals could slash US carbon footprint

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Cyclist

Health

Exercising more often doesn't increase your risk of knee arthritis

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HIV-infected T-cell

Health

Two people suppressed HIV for years while pausing medication

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Marijuana joint in a hand

Health

Quick saliva test can reveal cannabis use over the past 12 hours

A sample of saliva placed on a strip and analysed with a smartphone camera can reveal if a person has ingested cannabis in the past 12 hours

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Health

Highly processed junk food consumption is rising among US adults

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Health

Women are less likely to get pregnant for two years after a concussion

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Health

Massage gun for mice shows how pummelling tissue boosts muscle repair

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Humans

Eating to Extinction review: Are our bland diets bad for the world?

Culture

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