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Runners from above

Health

Can your gut bacteria really make you a better runner?

A new study opens the door to probiotics that boost physical performance, but whether they will work in humans is far from proven

Analysis

Sperm bank. Frozen sperm stored in liquid nitrogen.

Health

Storing sperm in a freezer for a decade hardly affects birth rates

News

An orcha

Life

Hundreds of orcas hold an annual meeting and now we may know why

News

chimpanzees

Life

Death of mother prompts adolescent chimps to look after their siblings

News

Indian wall painting about menstruation

Health

The pioneering podcast that's breaking the silence on women's health

Culture

How many steps a day do you really need? Spoiler: It isn't 10,000

Health

How many steps a day do you really need? Spoiler: It isn't 10,000

Features

Twins eat an ice cream

Health

How your body processes food is only partially down to your genes

News

The Tour de France pushes the human body to its limits

Humans

There's a fundamental limit to the amount of energy our bodies can use

News

Two women standing in a doorway

Technology

Experimental sci-fi expertly captures colliding realities

Culture

A spoon of sugar

Health

Why the truth about our sugar intake isn't as bad as we are told

Read the headlines, and you would think we are eating more sugar than ever before – but the numbers reveal a very different story, says James Wong

Comment

Technology

Working hypothesis: From Pokémon Sleep to David Camerson

Insight

Humans

Science could learn a lot from Mona Chalabi’s mischievous chart art

Culture

Health

CRISPR babies might live shorter lives due to their gene mutations

News

Life

Chimps' ingenuity earns them a treat

News