The blood of young people may hold compounds that benefit the brains of older people with Alzheimer's disease, so scientists are now looking at whether transfusions may help people with the condition.
Research in animals has shown that the blood of the young may counter some of the effects of aging in older brains. For instance, it might help to improve learning and memory, as well as generate new brain cells. Now, the scientists want to see if the benefits hold true in people.