A close look at dementia's human cost
Health ministers from the G8 nations are meeting in London this week to discuss the urgent challenge posed by dementia.
A total of 44 million people are already living with the condition around the world and that figure is predicted to soar to 76 million by 2030.
In a series of reports, the BBC has been examining the human cost of the condition.
Dementia diagnosis at 57: 'My whole world changed'
Tom Coppins had been a truck driver and owner of a haulage business for 30 years when he was diagnosed with dementia at the age of just 57.
''I felt like my how world had changed'', he said.
One country's pioneering dementia scheme
A scheme known as 'Green Care' is becoming increasingly popular as it allows sufferers to remain in the community for longer.
Jenny Hill has been to Oslo to meet Sigwald Lindblom Tveit, who has been spending three days a week on a farm as part of his treatment.
'Dementia tears your life apart'
Viv Galley, whose husband Bill has advanced Alzheimer's disease, had told the BBC about the ''horrible'' deterioration in his condition.
''It's a horrible illness...it tears your life apart,'' she said.
'What hope of a cure in time for me?'
Dementia patient Tom Coppins joined delegates at the G8 summit on dementia and met scientists who are working on developing treatments. He wanted to know if there was any chance a cure would be developed within his lifetime.