Research from 'life assistance' company CPP, which provides a variety of advice, insurance and practical help, says we're increasingly relying on mobiles to replace our own memories.
23 million adult Britons – 47% of the population - can't remember their partner's mobile number by heart, 30 million (61%) have the same problem with their best friend's number and 22 million (45%) don't know their parents' mobile number.