How alcohol affects the cognition of a person with dementia isn't completely understood, but four new studies presented at the Alzheimer's Association International Conference shed a little more light on their relationship.

CNN: New research offers tips for Alzheimer's caregivers

Four out of the 10 foetuses had measurable brain responses to the light, with reaction times better in the more highly developed foetuses.

BBC: Baby brainwaves measured in womb