91av

Health

First evidence that gut bacteria help wire young brains

Experiments in mice have shown for the first time that bacteria found in the gut of babies and children seem to play a role in brain development

Health

Many psychiatric conditions have the same genes in common

Health

Herpes viruses in the brain linked to Alzheimer’s disease

Health

Psychedelics may help your brain cells form new connections

Environment

Seals only sleep with half their brain when they’re out at sea

Environment

Chimp evolution was shaped by sex with their bonobo relatives

Environment

We may have got the evolution of our big brains entirely wrong

Humans

World’s most-spoken languages may have arisen in ancient Iran

Environment

People adapted to the cold and got more migraines as a result

Humans

Horses remember if you smiled or frowned when they last saw you

Horses can remember the expressions on people’s faces and use them to make judgements about whether people are nice or unpleasant

Environment

Male fruit flies feel pleasure when they ejaculate

Environment

Dog brain scans show if they are looking at a happy or sad face

Earth

Heavy metal poisoning may be changing birds’ personalities

Health

Electrodes fitted behind your ear can make you walk faster