. >> reporter: ellen johnson was diagnosed with dementia, drugs helped him, but he still needs con tant care. he has to lay out his shaving gear. he can only eat with a spoon and needs her help to get out of the house. she says too little money is being spent on research s i think it's because they look at somebody with dementia and say he or she looks all right to me. but, the fact is, they are not all right. they seem to forget that they are suffering a long term illness, the way as somebody with a cancer. >> reporter: today's report warns that by 2020 there will be over 1 million people with dementia. the amount spent on research is for every hundred pounds spend on caring for cancer patients, 10 pounds goes to research. research gets a measly 50 p. the head of one dementia charity says research has a lot to offer. >> it can last a long time. average eight years. some last longer than that. treatments coming along may help. understanding more about the disease may mean there are drugs out there we could use. more than that, we need to understand fundamentally more about the cause, th