New wristband warns when you’ve been been in the sun too long

Paper bracelet printed with light sensitive ink signals UV exposure to wearer with smiley and frowny face symbols

Ten minutes of exercise a day improves memory

Researchers have shown that the brain’s ability to store memories improves after a short burst of exercise

Girls as young as four taken to hospital amid fears that cutters are targeting younger girls and crossing borders to avoid detection

Will Self on London, Fran Lebowitz on New York, Helen Garner on Melbourne and other writers’ love letters to urban pedestrianism

There are better ways to realise one’s true self than chasing power, sex and money, says Guardian feature writer Stuart Jeffries

Giving birth is bloody painful. Why deny it? But it’s also the experience of a lifetime, says Guardian columnist Suzanne Moore

In Silicon Valley they say taking tiny amounts of the hallucinogenic drug increases creativity and productivity, but is it all in the mind?

Little research exists on the effects of tiny doses of hallucinogens, but devotees of the practice report remarkable benefits

Exclusive: Significant minority of young people in Denmark, Finland, Norway, Sweden and Iceland ‘struggling or suffering’

Rajasthan moves to tackle above average infant mortality rate by promoting natural feeding in first hour of life