Arm swinging reduces the metabolic cost of running

Have you ever tried running without swinging your arms? It's not easy. Each step jars and it feels like hard work: but is it? Christopher Arellano, from Brown University, USA, says, 'We know from the literature that arm swinging ...

You can't teach speed: sprinters break 10-year rule

New research shows world-class sprinters are born, not created. Grand Valley State University researchers found that exceptional speed prior to formal training is a prerequisite for becoming a world-class sprinter. The findings ...

Berlin start-up pioneers fish-farm veggie garden

The ancient Aztecs and Chinese did it millenia ago, and now a Berlin start-up hopes it will feed 21st-century city dwellers using aquaponics, a combination of rearing fish and growing vegetables.

Humans have a nose for gender

The human body produces chemical cues that communicate gender to members of the opposite sex, according to researchers who report their findings in the Cell Press journal Current Biology on May 1. Whiffs of the active steroid ...

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