Loneliness makes cancer 'more likely and deadly'

http://news.bbc.co.uk/1/hi/health/8398728.stm

Work in Proceedings of the National Academy of Science shows social isolation tips the odds in favour of aggressive cancer growth.

Rodents kept alone developed more tumours - and tumours of a more deadly type - than rats living as a group.

The researchers put it down to stress and say the same may well be true in humans.