We use only 10 per cent of our brains

This myth arose as early as 1907 but imaging shows no area of the brain is silent or completely inactive.

Hair and fingernails continue to grow after death

This idea may stem from ghoulish novels. The researchers said the skin dries out and retracts after death, giving the appearance of longer hair or nails.

Mobile phones are dangerous in hospitals

Despite widespread concerns, studies have found minimal interference with medical equipment.

The research was conducted by Aaron Carroll, an assistant professor of paediatrics at the Regenstrief Institute, Indianapolis, and Rachel Vreeman, fellow in children's health services research at Indiana University School of Medicine.