Frank, cookery studentI really have to look after her.Frank and Marion have been married for 63 years.Frank, cookery studentI'm her carer. She's not a well lady.Marion used to do most of the cooking but she has Alzheimer's disease - the most common form of dementia - so that's becoming harder. So Frank has been going to cooking classes run by Age UK, Barnet, aimed at men who, like Frank, would like to cook but have never learned.