Chemical traces on your phone reveal your lifestyle, scientists say

Molecular "signature" showing everything from grooming products used to drugs taken could help police and medical professionals to build profiles of individuals

If worries about personal data held inside your phone keeps you up at night, you might want to give the outside of your phone a scrub.

Scientists say they can deduce the lifestyle of an individual, down to the kind of grooming products they use, food they eat and medications they take, from chemicals found on the surface of their mobile phone.