'Pre-commitment helps boost willpower'

Molly Crockett says "pre-commitment" could be more effective than willpower alone.

26 July 2013

3 minutes

This clip is from

Today—26/07/2013

Employers have 'social duty' to employ locally
Duration: 03:24
Church of England 'must be consistent'
Duration: 16:17
'Lessons will be learned' from train crash
Duration: 07:30
Olympics had 'incredible effect' on school children
Duration: 03:30

Nepal: Man's family found dead and friend remains missing
Duration: 06:02
Investigation into house fire deaths near A66 crash
Duration: 03:10
Treasury worker who took her own life had 'no support' - father
Duration: 09:48
Energy bills to rise on average £60 a year
Duration: 04:42