While science is the same in the East and West, certain personal characteristics may distort scientific results. This is more likely in the East. An example may be a recent project in the East that measured the prevalence of Alzheimer's disease dementia in a very large group. They found it to be near 1%, which seems very low. Studies that show a low prevalence of Alzheimer's disease dementia could be due to an examination of a very healthy group with very few older people, and/or poor/inaccurate testing (none of which were in this study). Another possibility is that the person, their family or their doctor aim at ignoring or hiding a diagnosis of dementia.